added GetMessages helper and InputMessageID implicit operator

src/Client.Helpers.cs

@@ -631,6 +631,14 @@ namespace WTelegram
 					throw new ArgumentException("This method works on Chat & Channel only");
 			}
 		}
+
+		public async Task<Messages_MessagesBase> GetMessages(InputPeer peer, params InputMessage[] id)
+		{
+			if (peer is InputPeerChannel channel)
+				return await this.Channels_GetMessages(channel, id);
+			else
+				return await this.Messages_GetMessages(id);
+		}
 		#endregion
 	}
 }

src/TL.Helpers.cs

@@ -491,6 +491,11 @@ namespace TL
 
 	partial class WebDocument { public static implicit operator InputWebFileLocation(WebDocument doc) => new() { url = doc.url, access_hash = doc.access_hash }; }
 
+	partial class InputMessage
+	{
+		public static implicit operator InputMessage(int id) => new InputMessageID() { id = id };
+	}
+
 	partial class SecureFile
 	{
 		public static implicit operator InputSecureFile(SecureFile file) => new() { id = file.id, access_hash = file.access_hash };

src/TL.Schema.cs

@@ -9722,7 +9722,7 @@ namespace TL
 	}
 
 	/// <summary>A message		<para>Derived classes: <see cref="InputMessageID"/>, <see cref="InputMessageReplyTo"/>, <see cref="InputMessagePinned"/>, <see cref="InputMessageCallbackQuery"/></para>		<para>See <a href="https://corefork.telegram.org/type/InputMessage"/></para></summary>
-	public abstract class InputMessage : IObject { }
+	public abstract partial class InputMessage : IObject { }
 	/// <summary>Message by ID		<para>See <a href="https://corefork.telegram.org/constructor/inputMessageID"/></para></summary>
 	[TLDef(0xA676A322)]
 	public class InputMessageID : InputMessage