Fixed could not send message to private channel

bot.go

@@ -1046,6 +1046,11 @@ func (b *Bot) ChatByID(id string) (*Chat, error) {
 		return nil, errors.Errorf("api error: %s", resp.Description)
 	}
 
+	if resp.Result.Type == ChatChannel && resp.Result.Username != "" {
+		//Channel is Private
+		resp.Result.Type = ChatChannelPrivate
+	}
+
 	return resp.Result, nil
 }
 

telebot.go

@@ -128,10 +128,11 @@ const (
 type ChatType string
 
 const (
-	ChatPrivate    ChatType = "private"
-	ChatGroup      ChatType = "group"
-	ChatSuperGroup ChatType = "supergroup"
-	ChatChannel    ChatType = "channel"
+	ChatPrivate        ChatType = "private"
+	ChatGroup          ChatType = "group"
+	ChatSuperGroup     ChatType = "supergroup"
+	ChatChannel        ChatType = "channel"
+	ChatChannelPrivate ChatType = "privatechannel"
 )
 
 // MemberStatus is one's chat status