View Source ExGram.Model.File (ex_gram v0.53.0)
This object represents a file ready to be downloaded. The file can be downloaded via the link https://api.telegram.org/file/bot<token>/<file_path>. 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.
Check the documentation of this model in https://core.telegram.org/bots/api#file