usestd::env;constTELEGRAM_API_URL_DEFAULT:&str="https://api.telegram.org/";/// Obtains URL to the Telegram Bot API. You're able to change this URL to point to fake Telegram server
/// for E2E-testing by setting `TELEGRAM_API_URL` environment variable.
pubfntelegram_api_url()-> String{matchenv::var("TELEGRAM_API_URL"){Ok(url)=> url,Err(_)=>String::from(TELEGRAM_API_URL_DEFAULT),}}