getFile

Use this method to get basic information about a file and prepare it for downloading
For the moment, bots can download files of up to 20MB in size
The file can then be downloaded via the link https://api.telegram.org/file/bot<token>/<file_path>, where <file_path> is taken from the response
It is guaranteed that the link will be valid for at least 1 hour
When the link expires, a new one can be requested by calling getFile again.