Missing XML comment for publicly visible type or member 'IProtocolClient'

Missing XML comment for publicly visible type or member 'ProtocolClientExtensions.SubscribeOnceSync<TEvent>(IScopedProtocolClient, SyncDomainEventHandler<TEvent>)'

Missing XML comment for publicly visible type or member 'ProtocolClientExtensions.SubscribeOnceAsync<TEvent>(IScopedProtocolClient, AsyncDomainEventHandler<TEvent>)'

Missing XML comment for publicly visible type or member 'ProtocolClientExtensions.SubscribeOnceSync<TEvent>(IProtocolClient, SyncDomainEventHandler<TEvent>)'

Missing XML comment for publicly visible type or member 'ProtocolClientExtensions.SubscribeOnceAsync<TEvent>(IProtocolClient, AsyncDomainEventHandler<TEvent>)'

Missing XML comment for publicly visible type or member 'ProtocolClientExtensions'

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Possible null reference argument for parameter '@event' in 'void SyncDomainEventHandler<TEvent>.Invoke(TEvent @event)'.