function copyMessage(tgc::TelegramClient, chat_id::AbstractString, from_chat_id::AbstractString, message_id::AbstractString, caption::AbstractString="")
    query = (("chat_id" => chat_id), ("from_chat_id" => from_chat_id), ("message_id" => message_id))
    @show query
    req = HTTP.get(tgc.api_uri * COPY_MESSAGE * HTTP.escapeuri(query))
    return JSON3.read(req.body)
end

function getUpdates(tgc::TelegramClient; offset="NULL", limit="NULL", timeout="NULL", allowed_updates=["NULL"])
    query = Dict()
    if offset != "NULL" query["offset"]=string(offset) end
    if limit != "NULL" query["limit"]=string(limit) end
    if timeout != "NULL" query["timeout"]=string(timeout) end
    if allowed_updates != "NULL" query["allowed_updates"]=string.(allowed_updates) end
    req = HTTP.get(tgc.api_uri * GET_UPDATES * HTTP.escapeuri(query))
    return JSON3.read(req.body)
end # function getUpdates