Function test_proxy 

pub async fn test_proxy(
    proxy: Proxy,
    dc_id: i32,
    timeout: f64,
    client_id: i32,
) -> Result<(), Error>

Sends a simple network request to the Telegram servers via proxy; for testing only. Can be called before authorization

Arguments

• proxy - The proxy to test
• dc_id - Identifier of a datacenter with which to test connection
• timeout - The maximum overall timeout for the request
• client_id - The client id to send the request to