diff --git a/README.md b/README.md
index be32af3..9315691 100755
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@
 
 DTO stands for **Darn Tidy Object**, a playful twist on the traditional Data Transfer Object. But this isn’t your average DTO. It’s a fully-loaded toolkit for **traversing, transforming, and tidying up structured data** in PHP with style, power, and simplicity.
 
+_It also makes your life easier by ensuring every piece of data is returned in the correct type-helping. Whether you expect an int, string, bool, or even a callable, DTO gives you strict, reliable access to your data with minimal effort._
+
+---
 
 ## 📦 Installation
 
@@ -10,13 +13,15 @@ composer require maplephp/dto
 ```
 
 ## 📘 Documentation
-- [Why DTO?](https://maplephp.github.io/DTO/docs/intro#why-dto)
-- [Traverse Collection](https://maplephp.github.io/DTO/docs/traverse)
-- [Format string](https://maplephp.github.io/DTO/docs/format-string)
-- [Format Number](https://maplephp.github.io/DTO/docs/format-number)
-- [Format Clock](https://maplephp.github.io/DTO/docs/format-clock)
-- [Format Dom](https://maplephp.github.io/DTO/docs/format-dom)
 
+* [Why DTO?](https://maplephp.github.io/DTO/docs/intro#why-dto)
+* [Traverse Collection](https://maplephp.github.io/DTO/docs/traverse)
+* [Format string](https://maplephp.github.io/DTO/docs/format-string)
+* [Format Number](https://maplephp.github.io/DTO/docs/format-number)
+* [Format Clock](https://maplephp.github.io/DTO/docs/format-clock)
+* [Format Dom](https://maplephp.github.io/DTO/docs/format-dom)
+
+---
 
 ## How It Works
 
@@ -60,6 +65,26 @@ echo $obj->article->content->strExcerpt()->strUcFirst();
 
 ---
 
+### Correct Type Handling (with ease)
+
+No more clunky `is_numeric` checks or `intval` casts. DTO makes it simple to extract values in the exact type you expect:
+
+```php
+$orderId = $dto->order->id->toInt();
+// Result: 1234 (int)
+```
+
+Handle flexible types cleanly with fallbacks:
+
+```php
+$callback = $dto->settings->onReady->acceptType(['callable', 'null']);
+if (is_callable($callback)) {
+    $callback(); // Result: Runs a startup hook or closure
+}
+```
+
+---
+
 ### Built-In Data Transformation
 
 Transform values directly using built-in helpers like:
@@ -130,4 +155,6 @@ print_r($updated->toArray());
 
 ---
 
-Now go forth, write cleaner code, and let DTO handle the messy parts.
\ No newline at end of file
+Now go forth, write cleaner code, and let DTO handle the messy parts.
+
+---
diff --git a/src/DynamicDataAbstract.php b/src/DynamicDataAbstract.php
index 74c923e..2d96dee 100755
--- a/src/DynamicDataAbstract.php
+++ b/src/DynamicDataAbstract.php
@@ -9,12 +9,11 @@
 
 namespace MaplePHP\DTO;
 
-abstract class DynamicDataAbstract
+/** @psalm-no-seal-properties */
+abstract class DynamicDataAbstract extends \stdClass
 {
     private object $data;
 
-    abstract public function get();
-
     /**
      * Create a dynamic object that holds a dynamic set of items
      */
@@ -59,11 +58,11 @@ public function __set(string $key, mixed $value): void
      * Try to get data object item
      *
      * @param $key
-     * @return null
+     * @return self
      */
-    public function __get($key)
+    public function __get($key): self
     {
-        return ($this->data->{$key} ?? null);
+        return ($this->data->{$key} ?? $this);
     }
 
     /**
diff --git a/src/Format/Arr.php b/src/Format/Arr.php
index 6da579d..3e829db 100644
--- a/src/Format/Arr.php
+++ b/src/Format/Arr.php
@@ -39,10 +39,10 @@ public function __construct(mixed $value)
      * @param array $arguments
      * @return mixed
      */
-    function __call(string $name, array $arguments)
+    public function __call(string $name, array $arguments)
     {
         $inst = new Traverse($this->raw);
-        if(!method_exists($inst, $name)) {
+        if (!method_exists($inst, $name)) {
             throw new \BadMethodCallException("Method '$name' does not exist.");
         }
         return $inst->$name(...$arguments);
diff --git a/src/Format/Clock.php b/src/Format/Clock.php
index 37f38eb..b8fa1c0 100755
--- a/src/Format/Clock.php
+++ b/src/Format/Clock.php
@@ -19,9 +19,9 @@
 
 final class Clock extends FormatAbstract implements FormatInterface
 {
-    static protected ?string $defaultLocale = 'en';
+    protected static ?string $defaultLocale = 'en';
 
-    static protected string|DateTimeZone|null $defaultTimezone = null;
+    protected static string|DateTimeZone|null $defaultTimezone = null;
 
     protected ?string $locale = null;
     protected array $parts = [];
@@ -38,7 +38,7 @@ public function __construct(mixed $value)
             throw new InvalidArgumentException("Is expecting a string or a convertable string value.", 1);
         }
         $date = new DateTime($value);
-        if(!is_null(self::$defaultTimezone)) {
+        if (self::$defaultTimezone !== null) {
             $date->setTimezone(self::$defaultTimezone);
         }
         parent::__construct($date);
@@ -100,7 +100,7 @@ public function setLocale(string $localeCode): self
      * @param string $localeCode
      * @return void
      */
-    static public function setDefaultLocale(string $localeCode): void
+    public static function setDefaultLocale(string $localeCode): void
     {
         self::$defaultLocale = $localeCode;
     }
@@ -130,7 +130,7 @@ public function setTimezone(DateTimeZone|string $timezone): self
      * @return void
      * @throws \DateInvalidTimeZoneException
      */
-    static public function setDefaultTimezone(string|DateTimeZone $timezone): void
+    public static function setDefaultTimezone(string|DateTimeZone $timezone): void
     {
         self::$defaultTimezone = $timezone instanceof DateTimeZone ? $timezone : new DateTimeZone($timezone);
     }
@@ -154,9 +154,9 @@ public function timezone(): string
      */
     public function format(string $format = 'Y-m-d H:i:s', ?string $locale = null): string
     {
-        $locale = !is_null($locale) ? $locale : $this->getLocale();
+        $locale = $locale !== null ? $locale : $this->getLocale();
         $translations = $this->getTranslationData($this->raw, $locale);
-        if($translations) {
+        if ($translations) {
             return str_replace($translations['find'], $translations['replace'], $this->raw->format($format));
         }
         return $this->raw->format($format);
@@ -386,14 +386,14 @@ public function shortWeekday(): string
     protected function getTranslationData(DateTime $date, string $locale): array
     {
 
-        if($locale !== "en") {
+        if ($locale !== "en") {
             $translations = $this->getTranslation($locale);
-            if($translations === false) {
+            if ($translations === false) {
                 $formatters = $this->getLocaleTranslation($locale);
             }
         }
 
-        if(!isset($translations) && !isset($formatters)) {
+        if (!isset($translations) && !isset($formatters)) {
             return [];
         }
 
@@ -417,7 +417,7 @@ protected function getTranslationData(DateTime $date, string $locale): array
     protected function getTranslation(string $locale): array|false
     {
         $translationFile = realpath(__DIR__ . "/../lang/$locale.php");
-        if($translationFile !== false) {
+        if ($translationFile !== false) {
             return require $translationFile;
         }
         return false;
@@ -441,7 +441,7 @@ protected function getLocaleTranslation(string $locale): array
                 'monthFull'   => new IntlDateFormatter($locale, IntlDateFormatter::LONG, IntlDateFormatter::NONE, null, null, 'MMMM'),
                 'monthShort'  => new IntlDateFormatter($locale, IntlDateFormatter::MEDIUM, IntlDateFormatter::NONE, null, null, 'MMM'),
                 'weekdayFull' => new IntlDateFormatter($locale, IntlDateFormatter::FULL, IntlDateFormatter::NONE, null, null, 'EEEE'),
-                'weekdayShort'=> new IntlDateFormatter($locale, IntlDateFormatter::FULL, IntlDateFormatter::NONE, null, null, 'E')
+                'weekdayShort' => new IntlDateFormatter($locale, IntlDateFormatter::FULL, IntlDateFormatter::NONE, null, null, 'E')
             ];
         }
         return $this->parts[$locale];
diff --git a/src/Format/Dom.php b/src/Format/Dom.php
index 2649b97..9dd546b 100755
--- a/src/Format/Dom.php
+++ b/src/Format/Dom.php
@@ -152,7 +152,7 @@ public function element(): ElementInterface
     {
         $this->str = Str::value($this->raw);
         $elem = $this->dom->create($this->tag, $this->str)->hideEmptyTag(true);
-        if($this->attr) {
+        if ($this->attr) {
             $elem->attrArr($this->attr);
         }
         return $elem;
diff --git a/src/Format/Encode.php b/src/Format/Encode.php
index 9670ed2..61434a8 100755
--- a/src/Format/Encode.php
+++ b/src/Format/Encode.php
@@ -101,7 +101,7 @@ public function urldecode(?callable $callback = null): string|array
         if (is_array($this->raw)) {
             $this->raw = Arr::value($this->raw)->walk(function ($value) use ($callback) {
                 $value = Str::value((string)$value)->rawurldecode()->get();
-                if (!is_null($callback)) {
+                if ($callback !== null) {
                     $value = $callback($value);
                 }
                 return $value;
@@ -110,7 +110,7 @@ public function urldecode(?callable $callback = null): string|array
 
         } else {
             $this->raw = Str::value($this->raw)->rawurldecode()->get();
-            if (!is_null($callback)) {
+            if ($callback !== null) {
                 $this->raw = $callback($this->raw);
             }
         }
diff --git a/src/Format/Local.php b/src/Format/Local.php
index 10e9c23..7610df9 100755
--- a/src/Format/Local.php
+++ b/src/Format/Local.php
@@ -30,7 +30,7 @@ public static function value(mixed $data)
     {
 
         if (is_string($data)) {
-            if (is_null(self::$dir)) {
+            if (self::$dir === null) {
                 throw new Exception("You need to set default lang directory.", 1);
             }
             if (!is_file(self::$dir . "{$data}.php")) {
@@ -44,7 +44,7 @@ public static function value(mixed $data)
                 }
             }
 
-            if (is_null(self::$data[$data])) {
+            if (self::$data[$data] === null) {
                 throw new Exception("Could not propagate the language data object with any information.", 1);
             }
 
@@ -89,10 +89,10 @@ public function getValue(string $key): ?string
 
     public function get(string|array $key, string $fallback = "", ?array $sprint = null): ?string
     {
-        if (is_null($this::$prefix)) {
+        if ($this::$prefix === null) {
             throw new Exception("Lang prefix is null.", 1);
         }
-        if (!is_null($sprint)) {
+        if ($sprint !== null) {
             $this->sprint($sprint);
         }
 
@@ -105,7 +105,7 @@ public function get(string|array $key, string $fallback = "", ?array $sprint = n
         }
 
         $value = ($this->value[$key][$this::$prefix] ?? $fallback);
-        if (is_null($sprint)) {
+        if ($sprint === null) {
             return $value;
         }
 
diff --git a/src/Format/Num.php b/src/Format/Num.php
index e8b0948..a34542b 100755
--- a/src/Format/Num.php
+++ b/src/Format/Num.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * DEPRECATED
  * @Package:    MaplePHP Format numbers
@@ -62,10 +63,10 @@ public function setLocale(string $locale, int $type = NumberFormatter::CURRENCY)
      */
     public function getNumFormatter(): NumberFormatter
     {
-        if(!is_null($this->numInst)) {
+        if ($this->numInst !== null) {
             return $this->numInst;
         }
-        if(is_null(self::$defNumInst)) {
+        if (self::$defNumInst === null) {
             throw new \InvalidArgumentException("NumberFormatter instance not set.");
         }
         return self::$defNumInst;
diff --git a/src/Format/Str.php b/src/Format/Str.php
index b945319..8768dc1 100755
--- a/src/Format/Str.php
+++ b/src/Format/Str.php
@@ -35,6 +35,9 @@ public function __construct(mixed $value)
      */
     public static function value(mixed $value): FormatInterface
     {
+        if (is_array($value) || is_object($value)) {
+            $value = "";
+        }
         return new Str((string)$value);
     }
 
@@ -83,6 +86,25 @@ public function positionLast(string $needle, ?string $encoding = null): self
         return $inst;
     }
 
+
+    /**
+     * Get part of string
+     * This method uses multibyte functionality and provides a polyfill if your environment lacks support.
+     *
+     * @param int $start The start position of the substring
+     * @param int|null $length The length of the substring. If null, extract all characters to the end
+     * @param string|null $encoding The character encoding (e.g., 'UTF-8'). Default is null
+     * @return self
+     * @throws ErrorException
+     */
+    public function substr(int $start, ?int $length = null, ?string $encoding = null): self
+    {
+        $inst = clone $this;
+        $mb = new MB($inst->raw);
+        $inst->raw = (string)$mb->substr($start, $length, $encoding);
+        return $inst;
+    }
+
     /**
      * Get string length
      * This method uses multibyte functionality and provides a polyfill if your environment lacks support.
@@ -151,6 +173,24 @@ public function getContains(string $needle): self
         return $inst;
     }
 
+
+    /**
+     * Get a substring that appears after the first occurrence of needle
+     * Returns null if the needle is not found in the string
+     *
+     * @param string $needle The substring to search for
+     * @param int $offset Additional offset to add after needle position (default: 0)
+     * @return self
+     * @throws ErrorException
+     */
+    public function getContainAfter(string $needle, int $offset = 0): self
+    {
+        $inst = clone $this;
+        $position = $this->position($needle)->get();
+        $inst->raw = ($position !== false) ? $inst->substr($position + 1 + $offset)->get() : null;
+        return $inst;
+    }
+
     /**
      * Checks if a string starts with a given substring and return needle if true else false
      *
@@ -354,7 +394,7 @@ public function normalizeSeparators(): self
      * @param bool $doubleEncode
      * @return self
      */
-    public function entityEncode(int $flags = ENT_QUOTES|ENT_SUBSTITUTE, ?string $encoding = null, bool $doubleEncode = true): self
+    public function entityEncode(int $flags = ENT_QUOTES | ENT_SUBSTITUTE, ?string $encoding = null, bool $doubleEncode = true): self
     {
         $inst = clone $this;
         $inst->raw = htmlentities($inst->strVal(), $flags, $encoding, $doubleEncode);
@@ -368,7 +408,7 @@ public function entityEncode(int $flags = ENT_QUOTES|ENT_SUBSTITUTE, ?string $en
      * @param string|null $encoding
      * @return self
      */
-    public function entityDecode(int $flags = ENT_QUOTES|ENT_SUBSTITUTE, ?string $encoding = null): self
+    public function entityDecode(int $flags = ENT_QUOTES | ENT_SUBSTITUTE, ?string $encoding = null): self
     {
         $inst = clone $this;
         $inst->raw = html_entity_decode($inst->strVal(), $flags, $encoding);
@@ -439,7 +479,7 @@ public function toUpper(): self
     }
 
     /**
-     * Uppercase first letter in text
+     * Uppercase the first letter in text
      *
      * @return self
      */
@@ -451,7 +491,7 @@ public function ucFirst(): self
     }
 
     /**
-     * Uppercase first letter in every word
+     * Uppercase the first letter in every word
      *
      * @return self
      */
@@ -615,7 +655,7 @@ public function replace(array|string $find, array|string $replace): self
     {
         $inst = clone $this;
         $inst->raw = str_replace($find, $replace, $inst->strVal());
-        if(!is_string($inst->raw)) {
+        if (!is_string($inst->raw)) {
             throw new InvalidArgumentException("The value has to be an string value!", 1);
         }
         return $inst;
@@ -768,7 +808,7 @@ public function getUrlParts(array $parts): self
         foreach ($parts as $part) {
             $method = 'getUrl' . ucfirst($part);
             $subInst = new self($inst->raw);
-            if(!method_exists($subInst, $method)) {
+            if (!method_exists($subInst, $method)) {
                 throw new InvalidArgumentException("The part '$part' does not exist as a part in getUrlParts.", 1);
             }
             $subInst = call_user_func([$subInst, $method]);
@@ -798,7 +838,7 @@ public function getDirname(): self
     public function escape(): self
     {
         $inst = clone $this;
-        if (is_null($inst->raw)) {
+        if ($inst->raw === null) {
             $inst->raw = null;
         }
         return $inst->specialchars();
@@ -810,6 +850,34 @@ public function xss(): self
         return $this->escape();
     }
 
+    /**
+     * Export a variable as a valid PHP string representation
+     * This method uses PHP's var_export() function to get a parseable string representation
+     * of the raw value
+     *
+     * @return self
+     */
+    public function varExport(): self
+    {
+        $inst = clone $this;
+        $inst->raw = var_export($inst->raw, true);
+        return $inst;
+    }
+
+    /**
+     * Export raw value to string and escape special characters like newlines, tabs etc.
+     * This method is used internally to get a readable string representation of the value.
+     *
+     * @return self
+     */
+    public function exportReadableValue(): self
+    {
+        return $this->replace(
+            ["\n", "\r", "\t", "\v", "\0"],
+            ['\\n', '\\r', '\\t', '\\v', '\\0']
+        )->varExport()->replace('\\\\', '\\');
+    }
+
     /**
      * Return a string to bool value
      *
@@ -834,7 +902,7 @@ public function jsonDecode(?bool $associative = null, int $depth = 512, int $fla
     public function compare(string|int|float|bool|null $compare): self
     {
         $inst = clone $this;
-        if(is_numeric($inst->raw)) {
+        if (is_numeric($inst->raw)) {
             $inst->raw = ((float)$inst->raw > 0);
             return $inst;
         }
diff --git a/src/Helpers.php b/src/Helpers.php
index 30d98a4..eab7952 100644
--- a/src/Helpers.php
+++ b/src/Helpers.php
@@ -4,12 +4,12 @@
 
 use ReflectionClass;
 
-class Helpers {
-
+class Helpers
+{
     /**
      * @throws \ReflectionException
      */
-    static function debugDump($var, $label = null): void
+    public static function debugDump($var, $label = null): void
     {
         if (is_object($var)) {
             $reflection = new ReflectionClass($var);
@@ -32,11 +32,11 @@ static function debugDump($var, $label = null): void
         }
     }
 
-    static function printFormattedValue($value, $indent = 0): void
+    public static function printFormattedValue($value, $indent = 0): void
     {
         $spacingS = $spacingA = str_repeat("    ", $indent);
-        $spacingB = str_repeat("    ", $indent+1);
-        if($indent > 1) {
+        $spacingB = str_repeat("    ", $indent + 1);
+        if ($indent > 1) {
             $spacingS = "";
         }
         if (is_array($value)) {
@@ -61,19 +61,19 @@ static function printFormattedValue($value, $indent = 0): void
      * @param string $key
      * @return array|bool
      */
-    static function traversArrFromStr(array $array, string $key): mixed
+    public static function traversArrFromStr(array $array, string $key): mixed
     {
         $new = $array;
         $exp = explode(".", $key);
         foreach ($exp as $index) {
-            if(!isset($new[$index])) {
+            $data = is_object($new) ? ($new->{$index} ?? null) : ($new[$index] ?? null);
+            if ($data === null) {
                 $new = false;
                 break;
             }
-            $new = $new[$index];
+            $new = $data;
         }
         return $new;
     }
 
 }
-
diff --git a/src/Iconv.php b/src/Iconv.php
index 519e2fe..b1348fa 100755
--- a/src/Iconv.php
+++ b/src/Iconv.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * This is a Polyfill library for iconv
  * It is tho recommended to install iconv on the server rather than using the polyfill
@@ -40,18 +41,23 @@ public function __construct(string $value)
      */
     public function __toString(): string
     {
-        return (string)$this->getValue();
+        return (string)$this->get();
     }
 
     /**
      * Get value
      * @return string|false
      */
-    public function getValue(): string|false
+    public function get(): string|false
     {
         return $this->value;
     }
 
+    public function getValue(): string|false
+    {
+        return $this->get();
+    }
+
     /**
      * Will disable vanilla iconv function, used mostly for testing.
      *
@@ -73,7 +79,7 @@ public function disableVanilla(bool $disable): void
     public function encode(string $fromEncoding, string $toEncoding): self
     {
         $inst = $this->setEncoding($toEncoding);
-        if(function_exists('iconv') && !$inst->disableVanilla) {
+        if (function_exists('iconv') && !$inst->disableVanilla) {
             $inst->value = iconv($fromEncoding, $toEncoding, $inst->value);
 
         } else {
@@ -86,11 +92,11 @@ public function encode(string $fromEncoding, string $toEncoding): self
                 throw new ErrorException("iconv(): Detected an illegal character in input string");
             }
              */
-            if($fromEncoding !== "utf-8") {
+            if ($fromEncoding !== "utf-8") {
                 // Convert input to UTF-8
                 $inMap = $inst->getMap("from", $fromEncoding);
                 $inst->value = $inst->encodeUtf8($inMap, $inst->value);
-                if($inMap === false) {
+                if ($inMap === false) {
                     throw new ErrorException('iconv_strlen(): Wrong encoding, conversion from "' . $fromEncoding . '"');
                 }
 
@@ -102,7 +108,7 @@ public function encode(string $fromEncoding, string $toEncoding): self
             if ($toEncoding !== 'utf-8') {
                 $outMap = $inst->getMap("to", $toEncoding);
                 $inst->value = $inst->decodeUtf8($inst->value, $outMap, ($translit ? $inst->getMapFile("translit") : []));
-                if($outMap === false) {
+                if ($outMap === false) {
                     throw new ErrorException('iconv_strlen(): Wrong encoding, conversion to "' . $toEncoding . '"');
                 }
             }
@@ -113,7 +119,7 @@ public function encode(string $fromEncoding, string $toEncoding): self
     protected function setEncoding(?string $encoding = null): self
     {
         $inst = clone $this;
-        if(is_string($encoding)) {
+        if (is_string($encoding)) {
             $inst->encoding = $encoding;
         }
         return $inst;
@@ -131,12 +137,12 @@ protected function setEncoding(?string $encoding = null): self
     public function strlen(?string $encoding = null): int|false
     {
         $inst = $this->setEncoding($encoding);
-        if(function_exists("iconv_strlen") && !$inst->disableVanilla) {
+        if (function_exists("iconv_strlen") && !$inst->disableVanilla) {
             return iconv_strlen($inst->value, $inst->encoding);
         }
-        if(is_string($encoding)) {
+        if (is_string($encoding)) {
             $inst = $this->encode("utf-8", $inst->encoding);
-            if($inst->getValue() === false) {
+            if ($inst->getValue() === false) {
                 return false;
             }
         }
@@ -159,19 +165,19 @@ public function substr(int $start, ?int $length = null, ?string $encoding = null
         $value = "";
         $inst = $this->setEncoding($encoding);
         $length = $inst->getLength($length);
-        if(function_exists("iconv_substr") && !$inst->disableVanilla) {
+        if (function_exists("iconv_substr") && !$inst->disableVanilla) {
             $value = (string)iconv_substr($inst->value, $start, $length, $inst->encoding);
 
         } else {
-            if(is_string($encoding)) {
+            if (is_string($encoding)) {
                 $inst = $inst->encode("utf-8", $inst->encoding);
             }
             $inc = 0;
             $inst->loop($inst->value, function ($character, $charCount) use (&$value, &$inc, $start, $length) {
-                if(($charCount + 1) > $start) {
+                if (($charCount + 1) > $start) {
                     $value .= $character;
                     $inc++;
-                    if($inc >= $length) {
+                    if ($inc >= $length) {
                         return $inc;
                     }
                 }
@@ -201,19 +207,19 @@ public function strpos(string $needle, int $offset = 0, ?string $encoding = null
         $inc = 0;
         $total = 0;
         $completed = false;
-        if(function_exists("iconv_strpos") && !$inst->disableVanilla) {
+        if (function_exists("iconv_strpos") && !$inst->disableVanilla) {
             return iconv_strpos($inst->value, $needle, $offset, $inst->encoding);
         }
-        if(is_string($encoding)) {
+        if (is_string($encoding)) {
             $inst = $inst->encode("utf-8", $inst->encoding);
         }
         $needleInst = new self($needle);
-        if(is_string($encoding)) {
+        if (is_string($encoding)) {
             $needleInst->encode("utf-8", $inst->encoding);
         }
         $needleLength = $needleInst->strlen();
 
-        if($offset < 0) {
+        if ($offset < 0) {
             $offset = ($inst->strlen() + $offset);
         }
 
@@ -227,13 +233,13 @@ public function strpos(string $needle, int $offset = 0, ?string $encoding = null
             $encoding
         ) {
 
-            if(($charCount + 1) > $offset) {
+            if (($charCount + 1) > $offset) {
                 $char = (string)$needleInst->substr($inc, 1);
-                if($character === $char) {
+                if ($character === $char) {
                     $inc++;
-                    if($inc === $needleLength) {
+                    if ($inc === $needleLength) {
                         $completed = ($charCount + 1) - $inc;
-                        if(!$this->strposFollowThrough) {
+                        if (!$this->strposFollowThrough) {
                             return $completed;
                         }
                     }
@@ -244,7 +250,7 @@ public function strpos(string $needle, int $offset = 0, ?string $encoding = null
             $total++;
             return false;
         });
-        if($offset > $total) {
+        if ($offset > $total) {
             throw new ValueError('iconv_strpos(): Argument #3 ($offset) must be contained in argument #1 ($haystack)');
         }
         return ($completed && $inc > 0) ? $completed : false;
@@ -264,7 +270,7 @@ public function strrpos(string $needle, ?string $encoding = null): false|int
     {
         $inst = $this->setEncoding($encoding);
         $inst = $inst->strposFollowThrough(true);
-        if(function_exists("iconv_strrpos") && !$inst->disableVanilla) {
+        if (function_exists("iconv_strrpos") && !$inst->disableVanilla) {
             return iconv_strrpos($inst->value, $needle, $inst->encoding);
         }
         return $inst->strpos($needle, 0, $encoding);
@@ -280,7 +286,7 @@ public function strrpos(string $needle, ?string $encoding = null): false|int
     public function clearSuffix(string &$string, string $suffix): bool
     {
         $length = strlen($suffix);
-        if(substr($string, -$length) === $suffix) {
+        if (substr($string, -$length) === $suffix) {
             $string = substr($string, 0, -$length);
             return true;
         }
@@ -310,8 +316,8 @@ final protected function strposFollowThrough(bool $followThrough): self
      */
     private function getMap(string $type, string $charset): array|false
     {
-        if($map = $this->getMapFile("from.$charset")) {
-            if($type === "to") {
+        if ($map = $this->getMapFile("from.$charset")) {
+            if ($type === "to") {
                 return array_flip($map);
             }
             return $map;
@@ -474,7 +480,7 @@ protected function loop(string $value, ?callable $call = null): int
 
             if (is_callable($call)) {
                 $returnValue = $call($character, $charCount, $int);
-                if($returnValue !== false) {
+                if ($returnValue !== false) {
                     $charCount = $returnValue;
                     break;
                 }
@@ -503,6 +509,6 @@ final public function hasIllegalChar(string $value): bool
      */
     final public function getLength(?int $length = null): int
     {
-        return (is_null($length) || $length > self::STRING_MAX_LENGTH) ? self::STRING_MAX_LENGTH : $length;
+        return ($length === null || $length > self::STRING_MAX_LENGTH) ? self::STRING_MAX_LENGTH : $length;
     }
 }
diff --git a/src/MB.php b/src/MB.php
index 45548f2..14af275 100755
--- a/src/MB.php
+++ b/src/MB.php
@@ -1,4 +1,5 @@
 <?php
+
 /**
  * This is a Polyfill library for Multibyte
  * It is tho recommended to install mb on the server if is missing
@@ -32,18 +33,23 @@ public function __construct(string $value)
      */
     public function __toString(): string
     {
-        return (string)$this->getValue();
+        return (string)$this->get();
     }
 
     /**
      * Get value
      * @return string|false
      */
-    public function getValue(): string|false
+    public function get(): string|false
     {
         return $this->value;
     }
 
+    public function getValue(): string|false
+    {
+        return $this->get();
+    }
+
     /**
      * Will disable vanilla iconv function, used mostly for testing.
      *
@@ -67,7 +73,7 @@ public function disableVanilla(bool $disable): void
     public function encode(string $fromEncoding, string $toEncoding): self
     {
         $inst = clone $this;
-        if(function_exists('mb_convert_encoding') && !$inst->disableVanilla) {
+        if (function_exists('mb_convert_encoding') && !$inst->disableVanilla) {
             $inst->value = mb_convert_encoding($inst->value, $toEncoding, $fromEncoding);
         } else {
             $inst->iconv = $inst->iconv->encode($fromEncoding, $toEncoding);
@@ -85,7 +91,7 @@ public function encode(string $fromEncoding, string $toEncoding): self
      */
     public function strlen(?string $encoding = null): int|false
     {
-        if(function_exists('mb_strlen') && !$this->disableVanilla) {
+        if (function_exists('mb_strlen') && !$this->disableVanilla) {
             return mb_strlen($this->value, $encoding);
         }
         return $this->iconv->strlen($encoding);
@@ -103,7 +109,7 @@ public function strlen(?string $encoding = null): int|false
     public function substr(int $start, ?int $length = null, ?string $encoding = null): self
     {
         $inst = clone $this;
-        if(function_exists('mb_substr') && !$inst->disableVanilla) {
+        if (function_exists('mb_substr') && !$inst->disableVanilla) {
             $inst->value =  mb_substr($inst->value, $start, $length, $encoding);
         } else {
             $this->iconv = $this->iconv->substr($start, $length, $encoding);
@@ -123,7 +129,7 @@ public function substr(int $start, ?int $length = null, ?string $encoding = null
      */
     public function strpos(string $needle, int $offset = 0, ?string $encoding = null): false|int
     {
-        if(function_exists('mb_strpos') && !$this->disableVanilla) {
+        if (function_exists('mb_strpos') && !$this->disableVanilla) {
             return mb_strpos($this->value, $needle, $offset, $encoding);
         }
         return $this->iconv->strpos($needle, $offset, $encoding);
@@ -139,7 +145,7 @@ public function strpos(string $needle, int $offset = 0, ?string $encoding = null
      */
     public function strrpos(string $needle, ?string $encoding = null): false|int
     {
-        if(function_exists('mb_strrpos') && !$this->disableVanilla) {
+        if (function_exists('mb_strrpos') && !$this->disableVanilla) {
             return mb_strrpos($this->value, $needle, 0, $encoding);
         }
         return $this->iconv->strrpos($needle, $encoding);
diff --git a/src/Traits/CollectionUtilities.php b/src/Traits/CollectionUtilities.php
index 8d498aa..61466cb 100644
--- a/src/Traits/CollectionUtilities.php
+++ b/src/Traits/CollectionUtilities.php
@@ -3,6 +3,7 @@
 namespace MaplePHP\DTO\Traits;
 
 use Closure;
+use ErrorException;
 use MaplePHP\DTO\Format\Arr;
 use MaplePHP\DTO\Helpers;
 use MaplePHP\DTO\Traverse;
@@ -16,7 +17,7 @@ trait CollectionUtilities
      *
      * @param callable $callback A callable to run for each element in each array.
      * @param array $array Supplementary variable list of array arguments
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function map(callable $callback, array ...$array): self
     {
@@ -30,15 +31,15 @@ public function map(callable $callback, array ...$array): self
      * https://www.php.net/manual/en/function.array-filter.php
      *
      * @param callable|null $callback The callback function to use
-     *                                   If no callback is supplied, all empty entries of array will be
+     *                                   If no callback is supplied, all empty entries of an array will be
      *                                   removed. See empty() for how PHP defines empty in this case.
      * @param int $mode Flag determining what arguments are sent to callback:
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function filter(?callable $callback = null, int $mode = 0): self
     {
         $inst = clone $this;
-        $data = is_null($callback) ? $inst->raw : $inst->fetch();
+        $data = $callback === null ? $inst->raw : $inst->fetch();
         $inst->raw = array_filter($data, $callback, $mode);
         return $inst;
     }
@@ -49,7 +50,7 @@ public function filter(?callable $callback = null, int $mode = 0): self
      *
      * @param callable $callback
      * @param mixed|null $initial
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function reduce(callable $callback, mixed $initial = null): self
     {
@@ -64,7 +65,7 @@ public function reduce(callable $callback, mixed $initial = null): self
      *
      * @param int $length
      * @param bool $preserveKeys
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function chunk(int $length, bool $preserveKeys = false): self
     {
@@ -77,7 +78,7 @@ public function chunk(int $length, bool $preserveKeys = false): self
      * Flatten a array
      *
      * @param bool $preserveKeys
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function flatten(bool $preserveKeys = false): self
     {
@@ -99,7 +100,7 @@ public function flatten(bool $preserveKeys = false): self
     /**
      * Flatten array and preserve keys
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function flattenWithKeys(): self
     {
@@ -110,8 +111,8 @@ public function flattenWithKeys(): self
      * Merge two arrays
      *
      * @param array|TraverseInterface $combine
-     * @param bool $before Merge before main collection
-     * @return Arr|CollectionUtilities|Traverse
+     * @param bool $before Merge before the main collection
+     * @return Arr|self|Traverse
      */
     public function merge(array|TraverseInterface $combine, bool $before = false): self
     {
@@ -126,10 +127,10 @@ public function merge(array|TraverseInterface $combine, bool $before = false): s
     }
 
     /**
-     * Append array after main collection
+     * Append array after the main collection
      *
      * @param array|TraverseInterface $combine
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function append(array|TraverseInterface $combine): self
     {
@@ -137,10 +138,10 @@ public function append(array|TraverseInterface $combine): self
     }
 
     /**
-     * Perpend array after main collection
+     * Perpend array after the main collection
      *
      * @param array|TraverseInterface $combine
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function prepend(array|TraverseInterface $combine): self
     {
@@ -155,10 +156,13 @@ public function prepend(array|TraverseInterface $combine): self
      * @param int|null $length
      * @param mixed $replacement
      * @param mixed|null $splicedResults
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function splice(
-        int $offset, ?int $length, mixed $replacement = [], mixed &$splicedResults = null
+        int $offset,
+        ?int $length,
+        mixed $replacement = [],
+        mixed &$splicedResults = null
     ): self {
         $inst = clone $this;
         $splicedResults = array_splice($inst->raw, $offset, $length, $replacement);
@@ -173,7 +177,7 @@ public function splice(
      * @param int $offset
      * @param int|null $length
      * @param bool $preserveKeys
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function slice(int $offset, ?int $length, bool $preserveKeys = false): self
     {
@@ -187,7 +191,7 @@ public function slice(int $offset, ?int $length, bool $preserveKeys = false): se
      * https://www.php.net/manual/en/function.array-diff.php
      *
      * @param array|TraverseInterface $array
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function diff(array|TraverseInterface $array): self
     {
@@ -202,7 +206,7 @@ public function diff(array|TraverseInterface $array): self
      * https://www.php.net/manual/en/function.array-diff-assoc.php
      *
      * @param array|TraverseInterface $array
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function diffAssoc(array|TraverseInterface $array): self
     {
@@ -217,7 +221,7 @@ public function diffAssoc(array|TraverseInterface $array): self
      * https://www.php.net/manual/en/function.array-diff-key.php
      *
      * @param array|TraverseInterface $array
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function diffKey(array|TraverseInterface $array): self
     {
@@ -232,7 +236,7 @@ public function diffKey(array|TraverseInterface $array): self
      * https://www.php.net/manual/en/function.array-unique.php
      *
      * @param int $flags
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function unique(int $flags = SORT_STRING): self
     {
@@ -245,7 +249,7 @@ public function unique(int $flags = SORT_STRING): self
     /**
      * Will only return duplicate items
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function duplicates(): self
     {
@@ -258,7 +262,7 @@ public function duplicates(): self
      * Exchanges all keys with their associated values in an array
      * https://www.php.net/manual/en/function.array-flip.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function flip(): self
     {
@@ -272,7 +276,7 @@ public function flip(): self
      * https://www.php.net/manual/en/function.unset.php
      *
      * @param string ...$keySpread
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function unset(string|int|float|array ...$keySpread): self
     {
@@ -286,10 +290,10 @@ public function unset(string|int|float|array ...$keySpread): self
     }
 
     /**
-     * Will explode an array item value and then merge it into array in same hierarchy
+     * Will explode an array item value and then merge it into an array in the same hierarchy
      *
      * @param string $separator
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function expMerge(string $separator): self
     {
@@ -314,7 +318,7 @@ public function arrayItemExpMerge(string $separator): self
      *
      * @param int|string|null $columnKey
      * @param int|string|null $indexKey
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function column(int|string|null $columnKey, int|string|null $indexKey = null): self
     {
@@ -332,11 +336,11 @@ public function pluck(int|string|null $columnKey, int|string|null $indexKey = nu
     }
 
     /**
-     * Shift an element off the beginning of array
+     * Shift an element off the beginning of an array
      * https://www.php.net/manual/en/function.array-shift.php
      *
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function shift(mixed &$value = null): self
     {
@@ -346,11 +350,11 @@ public function shift(mixed &$value = null): self
     }
 
     /**
-     * Pop the element off the end of array
+     * Pop the element off the end of an array
      * https://www.php.net/manual/en/function.array-pop.php
      *
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function pop(mixed &$value = null): self
     {
@@ -364,7 +368,7 @@ public function pop(mixed &$value = null): self
      * https://www.php.net/manual/en/function.array-unshift.php
      *
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function unshift(mixed ...$value): self
     {
@@ -374,11 +378,11 @@ public function unshift(mixed ...$value): self
     }
 
     /**
-     * Push one or more elements onto the end of array
+     * Push one or more elements onto the end of an array
      * https://www.php.net/manual/en/function.array-push.php
      *
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function push(mixed ...$value): self
     {
@@ -388,12 +392,12 @@ public function push(mixed ...$value): self
     }
 
     /**
-     * Pad array to the specified length with a value
+     * Pad an array to the specified length with a value
      * https://www.php.net/manual/en/function.array-pad.php
      *
      * @param int $length
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function pad(int $length, mixed $value): self
     {
@@ -409,7 +413,7 @@ public function pad(int $length, mixed $value): self
      * @param int $startIndex
      * @param int $count
      * @param mixed $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function fill(int $startIndex, int $count, mixed $value): self
     {
@@ -425,7 +429,7 @@ public function fill(int $startIndex, int $count, mixed $value): self
      * @param string|int|float $start
      * @param string|int|float $end
      * @param int|float $step
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function range(string|int|float $start, string|int|float $end, int|float $step = 1): self
     {
@@ -438,7 +442,7 @@ public function range(string|int|float $start, string|int|float $end, int|float
      * Shuffle an array
      * https://www.php.net/manual/en/function.shuffle.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function shuffle(): self
     {
@@ -452,7 +456,7 @@ public function shuffle(): self
      * https://www.php.net/manual/en/function.array-rand.php
      *
      * @param int $num
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function rand(int $num = 1): self
     {
@@ -466,7 +470,7 @@ public function rand(int $num = 1): self
      * https://www.php.net/manual/en/function.array-replace.php
      *
      * @param array ...$replacements
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function replace(array ...$replacements): self
     {
@@ -480,7 +484,7 @@ public function replace(array ...$replacements): self
      * https://www.php.net/manual/en/function.array-replace.php
      *
      * @param array ...$replacements
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function replaceRecursive(array ...$replacements): self
     {
@@ -494,7 +498,7 @@ public function replaceRecursive(array ...$replacements): self
      * https://www.php.net/manual/en/function.array-reverse.php
      *
      * @param bool $preserveKeys
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function reverse(bool $preserveKeys = false): self
     {
@@ -505,12 +509,12 @@ public function reverse(bool $preserveKeys = false): self
 
     /**
      * Searches the array for a given value and returns the first corresponding 'key' if
-     * successful to collection
+     * successful to a collection
      * https://www.php.net/manual/en/function.array-search.php
      *
      * @param mixed $needle
      * @param bool $strict
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function search(mixed $needle, bool $strict = false): self
     {
@@ -521,17 +525,17 @@ public function search(mixed $needle, bool $strict = false): self
 
     /**
      * Searches the array for a given value and returns the first corresponding 'value' if
-     * successful to collection
+     * successful to a collection
      *
      * @param mixed $needle
      * @param bool $strict
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function find(mixed $needle, bool $strict = false): self
     {
         $inst = clone $this;
         $key = $this->search($needle, $strict)->get();
-        if($key === false) {
+        if ($key === false) {
             $inst->raw = null;
             return $inst;
         }
@@ -539,57 +543,57 @@ public function find(mixed $needle, bool $strict = false): self
     }
 
     /**
-     * Searches and filter out the array items that is found
+     * Searches and filter out the array items that are found
      * https://www.php.net/manual/en/function.array-search.php
      *
      * @param mixed $needle
      * @param bool $strict
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function searchFilter(array $needle, bool $strict = false): self
     {
-        return $this->filter(function ($item) use($needle, $strict) {
+        return $this->filter(function ($item) use ($needle, $strict) {
             return !in_array($item, $needle, $strict);
         });
     }
 
     /**
-     * Searches and filter out the array items that is not found
+     * Searches and filter out the array items that are not found
      * https://www.php.net/manual/en/function.array-search.php
      *
      * @param mixed $needle
      * @param bool $strict
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function searchMatch(array $needle, bool $strict = false): self
     {
-        return $this->filter(function ($item) use($needle, $strict) {
+        return $this->filter(function ($item) use ($needle, $strict) {
             return in_array($item, $needle, $strict);
         });
     }
 
     /**
-     * Apply a user supplied function to every member of an array
+     * Apply a user-supplied function to every member of an array
      * https://www.php.net/manual/en/function.array-walk.php
      *
      * @param array $needle
      * @param bool $strict
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function select(array $needle, bool $strict = false): self
     {
-        return $this->filter(function ($keyItem) use($needle, $strict) {
+        return $this->filter(function ($keyItem) use ($needle, $strict) {
             return in_array($keyItem, $needle, $strict);
         }, ARRAY_FILTER_USE_KEY);
     }
 
     /**
-     * Apply a user supplied function to every member of an array
+     * Apply a user-supplied function to every member of an array
      * https://www.php.net/manual/en/function.array-walk.php
      *
      * @param Closure $call
      * @param mixed|null $arg
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function walk(Closure $call, mixed $arg = null): self
     {
@@ -606,7 +610,7 @@ public function walk(Closure $call, mixed $arg = null): self
      *
      * @param Closure $call
      * @param mixed|null $arg
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function walkRecursive(Closure $call, mixed $arg = null): self
     {
@@ -618,8 +622,8 @@ public function walkRecursive(Closure $call, mixed $arg = null): self
     }
 
     /**
-     * Get first item in collection
-     * @return Arr|CollectionUtilities|Traverse
+     * Get the first item in a collection
+     * @return Arr|self|Traverse
      */
     public function next(): self
     {
@@ -629,8 +633,8 @@ public function next(): self
     }
 
     /**
-     * Get first item in collection
-     * @return Arr|CollectionUtilities|Traverse
+     * Get the first item in a collection
+     * @return Arr|self|Traverse
      */
     public function prev(): self
     {
@@ -644,7 +648,7 @@ public function prev(): self
      * https://www.php.net/manual/en/function.reset.php
      *
      * @param mixed|null $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function reset(mixed &$value = null): self
     {
@@ -658,7 +662,7 @@ public function reset(mixed &$value = null): self
      * https://www.php.net/manual/en/function.end.php
      *
      * @param mixed|null $value
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function end(mixed &$value = null): self
     {
@@ -668,10 +672,10 @@ public function end(mixed &$value = null): self
     }
 
     /**
-     * Get first item in collection
+     * Get the first item in a collection
      * https://www.php.net/manual/en/function.end.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function first(): self
     {
@@ -681,10 +685,10 @@ public function first(): self
     }
 
     /**
-     * Get last item in collection
+     * Get the last item in a collection
      * https://www.php.net/manual/en/function.end.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function last(): self
     {
@@ -697,7 +701,7 @@ public function last(): self
      * Fetch a key from an array
      * https://www.php.net/manual/en/function.key.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function key(): self
     {
@@ -714,7 +718,7 @@ public function key(): self
      * Return all the keys or a subset of the keys of an array
      * https://www.php.net/manual/en/function.array-keys.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function keys(): self
     {
@@ -732,7 +736,7 @@ public function keys(): self
      * https://www.php.net/implode
      *
      * @param array|string $separator
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function implode(array|string $separator = ""): self
     {
@@ -742,26 +746,31 @@ public function implode(array|string $separator = ""): self
     }
 
     /**
-     * Will return array item at index/key
+     * Will return the array item at index/key
      * https://www.php.net/manual/en/function.shuffle.php
      *
      * @param int|float|string $key
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function eq(int|float|string $key): self
     {
         if (is_string($key) && str_contains($key, ".")) {
             return new self(Helpers::traversArrFromStr($this->toArray(), $key));
         }
+
+        if(is_object($this->raw)) {
+            return new self($this->raw->{$key} ?? false);
+        }
+
         return new self($this->raw[$key] ?? false);
     }
 
     /**
-     * Extract all array items values in array with a wildcard search ("2025-*")
+     * Extract all array items values in an array with a wildcard search ("2025-*")
      *
      * @param string $search wildcard prefix
      * @param bool $searchByKey
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function wildcardMatch(string $search, bool $searchByKey = false): self
     {
@@ -779,16 +788,16 @@ public function wildcardMatch(string $search, bool $searchByKey = false): self
     }
 
     // Alias it wildcardMatch
-    function wildcardSearch(string $search, bool $searchByKey = false): self
+    public function wildcardSearch(string $search, bool $searchByKey = false): self
     {
         return $this->wildcardMatch($search, $searchByKey);
     }
 
     /**
-     * Find all array keys array with a wildcard search ("prefix_*")
+     * Find all array keys with a wildcard search ("prefix_*")
      *
      * @param string $search wildcard prefix
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function wildcardMatchKeys(string $search): self
     {
@@ -796,10 +805,10 @@ public function wildcardMatchKeys(string $search): self
     }
 
     /**
-     * Create a fallback value if value is Empty/Null/0/false
+     * Create a fallback value if the value is Empty/Null/0/false
      *
      * @param string $fallback
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function fallback(mixed $fallback): self
     {
@@ -814,7 +823,7 @@ public function fallback(mixed $fallback): self
      * Sprint over values
      *
      * @param string $add
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function sprint(string $add): self
     {
@@ -825,20 +834,29 @@ public function sprint(string $add): self
         return $inst;
     }
 
+    public function parseStr(): self
+    {
+        $inst = clone $this;
+        if (is_string($inst->raw)) {
+            parse_str($this->toString(), $inst->raw);
+        }
+        return $inst;
+    }
+
     /**
      * Same as value validate but will method chain.
-     * If invalid then the value will be set to "null" OR whatever you set the fallback
+     * If invalid, then the value will be set to "null" OR whatever you set the fallback
      *
      * @param string $method
      * @param array $args
      * @param mixed|null $fallback
-     * @return Arr|CollectionUtilities|Traverse
-     * @throws \ErrorException
+     * @return Arr|self|Traverse
+     * @throws ErrorException
      */
     public function validOrFallback(string $method, array $args = [], mixed $fallback = null): self
     {
         $inst = clone $this;
-        if(!$this->valid($method, $args)) {
+        if (!$this->valid($method, $args)) {
             $inst->raw = $fallback;
         }
         return $inst;
@@ -848,13 +866,13 @@ public function validOrFallback(string $method, array $args = [], mixed $fallbac
      * Calculate the sum of values in an array
      * https://www.php.net/manual/en/function.array-sum.php
      *
-     * @return Arr|CollectionUtilities|Traverse
+     * @return Arr|self|Traverse
      */
     public function sum(): self
     {
         $inst = clone $this;
         $arr = $this->raw;
-        if(!is_array($arr)) {
+        if (!is_array($arr)) {
             $arr = $this->toArray();
         }
         $inst->raw = array_sum($arr);
@@ -875,4 +893,4 @@ protected function handleCollectArg(array|TraverseInterface $collect): array
         return $collect;
     }
 
-}
\ No newline at end of file
+}
diff --git a/src/Traverse.php b/src/Traverse.php
index 3be6031..f80b9a0 100755
--- a/src/Traverse.php
+++ b/src/Traverse.php
@@ -1,23 +1,171 @@
 <?php
+
 /**
  * @Package:    MaplePHP - The main traverse class
  * @Author:     Daniel Ronkainen
  * @Licence:    Apache-2.0 license, Copyright © Daniel Ronkainen
-                Don't delete this comment, its part of the license.
+                Don't delete this comment, it's part of the license.
  */
 
 namespace MaplePHP\DTO;
 
 use BadMethodCallException;
+use Closure;
 use ErrorException;
 use MaplePHP\DTO\Format\FormatInterface;
 use MaplePHP\DTO\Format\Str;
-use MaplePHP\Validate\Inp;
+use MaplePHP\Validate\Validator;
 use ReflectionClass;
 use ReflectionException;
 use stdClass;
 
 /**
+ * @method self strStrVal()
+ * @method self strPosition(string $needle, int $offset = '0', ?string $encoding = '')
+ * @method self strPositionLast(string $needle, ?string $encoding = '')
+ * @method self strSubstr(int $start, ?int $length = '', ?string $encoding = '')
+ * @method self strStrlen(?string $encoding = '')
+ * @method self strContains(string $needle)
+ * @method self strStartsWith(string $needle)
+ * @method self strEndsWith(string $needle)
+ * @method self strGetContains(string $needle)
+ * @method self strGetContainAfter(string $needle, int $offset = '0')
+ * @method self strGetStartsWith(string $needle)
+ * @method self strGetEndsWith(string $needle)
+ * @method self strExcerpt(int $length = '40', string $ending = '...', ?string $encoding = '')
+ * @method self strNl2br()
+ * @method self strAddTrailingSlash()
+ * @method self strTrailingSlash()
+ * @method self strTrimTrailingSlash()
+ * @method self strStripTags(string $whitelist = '')
+ * @method self strEncode(int $flag = '3')
+ * @method self strDecode(?int $flag = '3')
+ * @method self strSpecialChars(int $flag = '3', string $encoding = 'UTF-8')
+ * @method self strSanitizeIdentifiers()
+ * @method self strClearBreaks()
+ * @method self strNormalizeSpaces()
+ * @method self strNormalizeSeparators()
+ * @method self strEntityEncode(int $flags = '11', ?string $encoding = '', bool $doubleEncode = '1')
+ * @method self strEntityDecode(int $flags = '11', ?string $encoding = '')
+ * @method self strTrim(string $characters = ' \n\r\t\v\0')
+ * @method self strLtrim(string $characters = ' \n\r\t\v\0')
+ * @method self strRtrim(string $characters = ' \n\r\t\v\0')
+ * @method self strToLower()
+ * @method self strToUpper()
+ * @method self strUcFirst()
+ * @method self strUcWords()
+ * @method self strPad(int $length, string $padString = ' ', int $padType = '1')
+ * @method self strLeadingZero(int $length = '2')
+ * @method self strReplaceSpaces(string $replaceWith = '-')
+ * @method self strFormatEmail()
+ * @method self strSlug()
+ * @method self strFormatSlug()
+ * @method self strNormalizeAccents()
+ * @method self strReplaceSpecialChar()
+ * @method self strUrlDecode()
+ * @method self strUrlEncode()
+ * @method self strRawUrlEncode()
+ * @method self strRawUrlDecode()
+ * @method self strReplace(array|string $find, array|string $replace)
+ * @method self strNormalizeUrlEncoding()
+ * @method self strToggleUrlEncode()
+ * @method self strExplodeCamelCase()
+ * @method self strCamelCaseToArr()
+ * @method self strGetUrlPath()
+ * @method self strGetUrlScheme()
+ * @method self strGetUrlHost()
+ * @method self strGetUrlPort()
+ * @method self strGetUrlUser()
+ * @method self strGetUrlPassword()
+ * @method self strGetUrlQuery()
+ * @method self strGetUrlFragment()
+ * @method self strGetUrlParts(array $parts)
+ * @method self strGetDirname()
+ * @method self strEscape()
+ * @method self strXss()
+ * @method self strVarExport()
+ * @method self strExportReadableValue()
+ * @method self strJsonDecode(?bool $associative = '', int $depth = '512', int $flags = '0')
+ * @method self strCompare(string|int|float|bool|null $compare)
+ * @method self strGet()
+ * @method self strFallback(string $fallback)
+ * @method self strClone()
+ * @method self strDto(string $dtoClassName)
+ * @method self numSetLocale(string $locale, int $type)
+ * @method self numGetNumFormatter()
+ * @method self numFloat()
+ * @method self numInt()
+ * @method self numRound(int $precision, int $mode)
+ * @method self numFloor()
+ * @method self numCeil()
+ * @method self numAbs()
+ * @method self numNumberFormat(int $decimals, string $decimalSeparator, string $thousandsSeparator)
+ * @method self numLeadingZero(int $length)
+ * @method self numClamp(float $min, float $max)
+ * @method self numIsEven()
+ * @method self numIsOdd()
+ * @method self numPercentToDecimal()
+ * @method self numToPercent(int $precision)
+ * @method self numToKb()
+ * @method self numToFilesize()
+ * @method self numToBytes()
+ * @method self numToCurrency(string $currency, int $decimals, int $roundingMode)
+ * @method self numGetCurrencySymbol(string $currency)
+ * @method self numToCurrencyIso(string $currency, int $decimals)
+ * @method self numGet()
+ * @method self numFallback(string $fallback)
+ * @method self numClone()
+ * @method self numDto(string $dtoClassName)
+ * @method self clockSetLocale(string $locale, int $type)
+ * @method self clockGetNumFormatter()
+ * @method self clockFloat()
+ * @method self clockInt()
+ * @method self clockRound(int $precision, int $mode)
+ * @method self clockFloor()
+ * @method self clockCeil()
+ * @method self clockAbs()
+ * @method self clockNumberFormat(int $decimals, string $decimalSeparator, string $thousandsSeparator)
+ * @method self clockLeadingZero(int $length)
+ * @method self clockClamp(float $min, float $max)
+ * @method self clockIsEven()
+ * @method self clockIsOdd()
+ * @method self clockPercentToDecimal()
+ * @method self clockToPercent(int $precision)
+ * @method self clockToKb()
+ * @method self clockToFilesize()
+ * @method self clockToBytes()
+ * @method self clockToCurrency(string $currency, int $decimals, int $roundingMode)
+ * @method self clockGetCurrencySymbol(string $currency)
+ * @method self clockToCurrencyIso(string $currency, int $decimals)
+ * @method self clockGet()
+ * @method self clockFallback(string $fallback)
+ * @method self clockClone()
+ * @method self clockDto(string $dtoClassName)
+ * @method self domSetLocale(string $locale, int $type)
+ * @method self domGetNumFormatter()
+ * @method self domFloat()
+ * @method self domInt()
+ * @method self domRound(int $precision, int $mode)
+ * @method self domFloor()
+ * @method self domCeil()
+ * @method self domAbs()
+ * @method self domNumberFormat(int $decimals, string $decimalSeparator, string $thousandsSeparator)
+ * @method self domLeadingZero(int $length)
+ * @method self domClamp(float $min, float $max)
+ * @method self domIsEven()
+ * @method self domIsOdd()
+ * @method self domPercentToDecimal()
+ * @method self domToPercent(int $precision)
+ * @method self domToKb()
+ * @method self domToFilesize()
+ * @method self domToBytes()
+ * @method self domToCurrency(string $currency, int $decimals, int $roundingMode)
+ * @method self domGetCurrencySymbol(string $currency)
+ * @method self domToCurrencyIso(string $currency, int $decimals)
+ * @method self domGet()
+ * @method self domFallback(string $fallback)
+ * @method self domClone()
+ * @method self domDto(string $dtoClassName)
  * @method \MaplePHP\DTO\Format\Str str()
  * @method \MaplePHP\DTO\Format\Arr arr()
  * @method \MaplePHP\DTO\Format\Num num()
@@ -25,7 +173,6 @@
  * @method \MaplePHP\DTO\Format\Dom dom()
  * @method \MaplePHP\DTO\Format\Encode encode()
  * @method \MaplePHP\DTO\Format\Local local()
- * @mixin \MaplePHP\DTO\Format\Clock
  */
 class Traverse extends DynamicDataAbstract implements TraverseInterface
 {
@@ -33,7 +180,7 @@ class Traverse extends DynamicDataAbstract implements TraverseInterface
 
     protected mixed $raw = null;
 
-    static private array $helpers = [
+    private static array $helpers = [
       'Str', 'Arr', 'Num', 'Clock', 'Dom', 'Encode', 'Local'
     ];
 
@@ -55,14 +202,14 @@ public static function value(mixed $data): self
     }
 
     /**
-     * With new "Traverse" collection
+     * With a new "Traverse" collection
      *
      * @param mixed $data
      * @return self
      */
     public function with(mixed $data): self
     {
-        if($data instanceof TraverseInterface) {
+        if ($data instanceof TraverseInterface) {
             return clone $data;
         }
         return new self($data);
@@ -84,7 +231,7 @@ public function addHelper(FormatInterface $helper): void
      *
      * @return string[]
      */
-    static public function listAllHelpers(): array
+    public static function listAllHelpers(): array
     {
         return self::$helpers;
     }
@@ -93,20 +240,25 @@ static public function listAllHelpers(): array
      * Object traverser
      *
      * @param $key
-     * @return Traverse|null
+     * @return Traverse
      */
-    public function __get($key)
+    public function __get($key): self
     {
-        if(isset($this->getData()->{$key})) {
+        if (isset($this->getData()->{$key})) {
             $data = $this->getData()->{$key};
-            if(is_object($data) && !($data instanceof DynamicDataAbstract)) {
+            if (is_object($data) && !($data instanceof DynamicDataAbstract)) {
                 return $data;
             }
             return $this::value($data);
         }
 
-        if(isset($this->raw[$key]) || isset($this->raw->{$key})) {
-            return $this::value($this->raw[$key] ?? $this->raw->{$key});
+        if (
+            (is_array($this->raw) && isset($this->raw[$key])) ||
+            (is_object($this->raw) && isset($this->raw->{$key}))
+        ) {
+            return $this::value(
+                is_array($this->raw) ? $this->raw[$key] : $this->raw->{$key}
+            );
         }
 
         $this->raw = null;
@@ -129,12 +281,12 @@ public function __call($method, $args)
         $expectedClass = array_shift($data);
         $formatClassInst = $this->format($expectedClass, $this->raw);
         $expectedMethod = implode('', $data);
-        if(!$expectedMethod) {
+        if (!$expectedMethod) {
             return $formatClassInst;
         }
         $expectedMethod = lcfirst($expectedMethod);
 
-        if(!method_exists($formatClassInst, $expectedMethod) &&
+        if (!method_exists($formatClassInst, $expectedMethod) &&
             ($formatClassInst === "Collection" && !function_exists($expectedMethod))) {
             throw new BadMethodCallException("The DTO method \"$expectedMethod\" does not exist!", 1);
         }
@@ -171,7 +323,25 @@ public function add(string $key, mixed $value): self
     }
 
     /**
-     * Validate current item and set to fallback (default: null) if not valid
+     * Validate the current item
+     *
+     * @example $this->email->validator()->isEmail() // returns bool
+     * @return Validator
+     * @throws ErrorException
+     */
+    public function validator(): Validator
+    {
+        return Validator::value($this->raw);
+    }
+
+    // Alias to validator
+    public function expect(): Validator
+    {
+        return Validator::value($this->raw);
+    }
+
+    /**
+     * Validate the current item and set to fallback (default: null) if not valid
      *
      * @param string $method
      * @param array $args
@@ -180,8 +350,8 @@ public function add(string $key, mixed $value): self
      */
     public function valid(string $method, array $args = []): bool
     {
-        $inp = Inp::value($this->raw);
-        if(!method_exists($inp, $method)) {
+        $inp = Validator::value($this->raw);
+        if (!method_exists($inp, $method)) {
             throw new BadMethodCallException("The MaplePHP validation method \"$method\" does not exist!", 1);
         }
         return $inp->{$method}(...$args);
@@ -192,7 +362,6 @@ public function valid(string $method, array $args = []): bool
      *
      * https://www.php.net/manual/en/function.json-encode.php
      *
-     * @param mixed $value
      * @param int $flags
      * @param int $depth
      * @return string|false
@@ -202,6 +371,16 @@ public function toJson(int $flags = 0, int $depth = 512): string|false
         return json_encode($this->get(), $flags, $depth);
     }
 
+    /**
+     * Returns the string representation of the value
+     *
+     * @return string
+     */
+    public function toString(): string
+    {
+        return (string)$this->get();
+    }
+
     /**
      * Returns the int representation of the value
      *
@@ -230,17 +409,17 @@ public function toFloat(): float
     public function toBool(): bool
     {
         $value = $this->get();
-        if(is_bool($value)) {
+        if (is_bool($value)) {
             return $value;
         }
-        if(is_numeric($value)) {
+        if (is_numeric($value)) {
             return ((float)$value > 0);
         }
         return ($value !== "false" && strlen($value));
     }
 
     /**
-     * Convert collection into an array
+     * Convert a collection into an array
      *
      * @param callable|null $callback
      * @return array
@@ -251,11 +430,11 @@ public function toArray(?callable $callback = null): array
         $new = [];
         $inst = clone $this;
 
-        if (is_null($inst->raw)) {
+        if ($inst->raw === null) {
             $inst->raw = $inst->getData();
         }
 
-        if(!is_object($inst->raw) && !is_array($inst->raw)) {
+        if (!is_object($inst->raw) && !is_array($inst->raw)) {
             $inst->raw = [$inst->raw];
         }
 
@@ -264,7 +443,7 @@ public function toArray(?callable $callback = null): array
                 (($get = $callback($row, $key, $index)) !== false)) {
                 $row = $get;
             }
-            if($row instanceof self) {
+            if ($row instanceof self) {
                 $row = $row->get();
             }
             $new[$key] = $row;
@@ -273,10 +452,70 @@ public function toArray(?callable $callback = null): array
         return $new;
     }
 
+    /**
+     * Accepts and validates data types
+     *
+     * This method checks if the raw data type matches any of the valid data types provided.
+     * If matched, returns the raw value, otherwise throws an exception.
+     *
+     * @template T of 'array'|'object'|'bool'|'int'|'float'|'string'|'resource'|'null'|'callable'|'closure'
+     * @param array $validDataType List of valid data types to check against
+     * @psalm-param list<T> $validDataType
+     * @return mixed The raw value if type matches, otherwise throws exception
+     * @throws BadMethodCallException If data type is not supported
+     * @psalm-return (
+     *     T is 'array'? array:
+     *     T is 'object'? object:
+     *     T is 'bool'? bool:
+     *     T is 'int'? int:
+     *     T is 'float'? float:
+     *     T is 'string'? string:
+     *     T is 'resource'? mixed:
+     *     T is 'null'? null:
+     *     T is 'callable'? callable:
+     *     T is 'closure'? \Closure:
+     *     mixed
+     * )
+     */
+    public function acceptType(array $validDataType = []): mixed
+    {
+        if (is_array($this->raw) && in_array("array", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_object($this->raw) && in_array("object", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_bool($this->raw) && in_array("bool", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_int($this->raw) && in_array("int", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_float($this->raw) && in_array("float", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_string($this->raw) && in_array("string", $validDataType)) {
+            return $this->raw;
+        }
+        if ($this->raw === null && in_array("null", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_callable($this->raw) && in_array("callable", $validDataType)) {
+            return $this->raw;
+        }
+        if (($this->raw instanceof Closure) && in_array("closure", $validDataType)) {
+            return $this->raw;
+        }
+        if (is_resource($this->raw) && in_array("resource", $validDataType)) {
+            return $this->raw;
+        }
+        throw new BadMethodCallException("The DTO data type is not supported!", 1);
+    }
+
     /**
      * Immutable: Access incremental array
      *
-     * @param callable|null $callback Access array row in the callbacks argument
+     * @param callable|null $callback Access array row in the callback argument
      * @return array|object|null
      */
     public function fetch(?callable $callback = null): array|object|null
@@ -285,12 +524,12 @@ public function fetch(?callable $callback = null): array|object|null
         $new = [];
         $inst = clone $this;
 
-        if (is_null($inst->raw)) {
+        if ($inst->raw === null) {
             $inst->raw = $inst->getData();
         }
 
         foreach ($inst->raw as $key => $row) {
-            if (!is_null($callback)) {
+            if ($callback !== null) {
                 if (($get = $callback($inst::value($row), $key, $row, $index)) !== false) {
                     $new[$key] = $get;
                 } else {
@@ -305,7 +544,7 @@ public function fetch(?callable $callback = null): array|object|null
                     $value = $row;
                 } else {
                     // Incremental -> value
-                    $value = !is_null($row) ? Format\Str::value($row) : null;
+                    $value = $row !== null ? Format\Str::value($row) : null;
                 }
                 $new[$key] = $value;
             }
@@ -328,7 +567,7 @@ public function each(callable $callback): array|object|null
     }
 
     /**
-     * Dump collection into a human-readable array dump
+     * Dump a collection into a human-readable array dump
      *
      * @return void
      * @throws ReflectionException
@@ -339,7 +578,7 @@ public function dump(): void
     }
 
     /**
-     * Count if row is array. Can be used to validate before @fetch method
+     * Count if the row is an array. Can be used to validate before @fetch method
      *
      * @return int
      */
@@ -371,7 +610,7 @@ protected function format(string $dtoClassName, mixed $value): object
         $name = ucfirst($dtoClassName);
         $className = "MaplePHP\\DTO\\Format\\$name";
 
-        if(!in_array($name, self::$helpers)) {
+        if (!in_array($name, self::$helpers)) {
             throw new BadMethodCallException("The DTO class \"$dtoClassName\" is not a Helper class! " .
                 "You can add helper class with 'addHelper' if you wish.", 1);
         }
diff --git a/src/TraverseInterface.php b/src/TraverseInterface.php
index fe1474f..bd352d4 100644
--- a/src/TraverseInterface.php
+++ b/src/TraverseInterface.php
@@ -8,13 +8,12 @@
 
 interface TraverseInterface
 {
-
     /**
      * Object traverser
      * @param $key
-     * @return Traverse|null
+     * @return Traverse
      */
-    public function __get($key);
+    public function __get($key): self;
 
     /**
      * Immutable formating class
@@ -93,4 +92,4 @@ public function isset(): mixed;
      * @return self
      */
     public function fallback(mixed $fallback): self;
-}
\ No newline at end of file
+}
diff --git a/tests/unitary-dto-string.php b/tests/unitary-dto-string.php
index 636503b..9bb0195 100644
--- a/tests/unitary-dto-string.php
+++ b/tests/unitary-dto-string.php
@@ -1,6 +1,7 @@
 <?php
 
 use MaplePHP\DTO\Format\Arr;
+use MaplePHP\DTO\Format\Str;
 use MaplePHP\DTO\Traverse;
 
 $unit = new MaplePHP\Unitary\Unit();
@@ -22,6 +23,7 @@
         "json" => '{"name":"Alice","email":"alice@example.com","roles":["admin","editor"]}',
         "date" => "2023-08-21 14:35:12",
         "content" => "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse euismod turpis eget elit eleifend, non pulvinar enim dapibus.\n Nullam blandit vitae justo vitae viverra. Aliquam varius eu leo a euismod.",
+        "exportReadable" => "hello \n\t",
     ]);
 
     $this->add($obj->firstname->str()->stripTags()->ucFirst()->get(), [
@@ -53,6 +55,18 @@
         "equal" => 18,
     ], "strlen: Failed");
 
+    $this->add($obj->content->str()->substr(0, 5)->get(), [
+        "equal" => "Lorem",
+    ], "substr: Failed");
+
+    $this->add($obj->email->str()->getContainAfter("@")->get(), [
+        "equal" => "gmail.com",
+    ], "getContainAfter required to be true");
+
+    $this->add($obj->exportReadable->str()->exportReadableValue()->get(), [
+        "equal" => Str::value("hello \n\t")->exportReadableValue()->get(),
+    ], "exportReadableValue required to be true");
+
     $data = $obj->json->str()->jsonDecode()->get();
     $this->add($data->name ?? "", [
         "equal" => 'Alice',
diff --git a/tests/unitary-dto-traverse.php b/tests/unitary-dto-traverse.php
index c2de6fd..476137e 100644
--- a/tests/unitary-dto-traverse.php
+++ b/tests/unitary-dto-traverse.php
@@ -2,6 +2,7 @@
 
 use MaplePHP\DTO\Format\Arr;
 use MaplePHP\DTO\Traverse;
+use MaplePHP\Unitary\Expect;
 
 $unit = new MaplePHP\Unitary\Unit();
 
@@ -11,6 +12,7 @@
         "firstname" => "<em>daniel</em>",
         "lastname" => "doe",
         "email" => "john.doe@gmail.com",
+        "contact_email" => "john.doe@gmail.com",
         "slug" => "Lorem ipsum åäö",
         "price" => "1999.99",
         "publish_date" => "2023-08-01 14:35:12",
@@ -30,6 +32,14 @@
         'randSumList' => [12, 77, 62, 626],
     ]);
 
+    $this->validate($obj->contact_email->toString(), function(Expect $inst) {
+        $inst->isEmail();
+    });
+
+
+    $this->validate($obj->email->validator()->isEmail(), function($inst) {
+        return $inst->isTrue();
+    });
 
     $this->add($obj->meta->wildcardSearch("2023-*")->count(), [
         'equal' => 2,
@@ -328,7 +338,7 @@
     }, "Value should equal to 'john 1'");
 
 
-    $this->add($obj->feed->fetch(), function ($value) {
+    $this->add($obj->feed->fetch(), function ($value, $inst) {
         return ($this->isArray() && count($value) === 2);
     }, "Expect fetch to return an array");
 
@@ -425,4 +435,12 @@
         "equal" => "fish"
     ], "last did return wrong value");
 
+
+    /*
+    echo $this->listAllProxyMethods(\MaplePHP\DTO\Format\Str::class, "str");
+    echo $this->listAllProxyMethods(\MaplePHP\DTO\Format\Num::class, "num");
+    echo $this->listAllProxyMethods(\MaplePHP\DTO\Format\Num::class, "clock");
+    echo $this->listAllProxyMethods(\MaplePHP\DTO\Format\Num::class, "dom");
+     */
+
 });
\ No newline at end of file