OpenIntegrations/docs/en/examples/Telegram/ForwardMessage.txt

    Token     = FunctionParameters["Telegram_Token"];
    ChatID    = FunctionParameters["Telegram_ChatID"];
    ChannelID = FunctionParameters["Telegram_ChannelID"];
    MessageID = FunctionParameters["Telegram_ChannelMessageID"];

    Result = OPI_Telegram.ForwardMessage(Token, MessageID, ChannelID, ChatID);