public function init(string $file, string $format_name)
    {
        $this->file = $file;
        $this->format_name = $format_name;
    }
public function init(string $file, string $format_name)
    {
        $this->file = $file;
        $this->format_name = $format_name;
    }
public function init ( string $ file , string $ format_name ) { $ this -> file = $ file ; $ this -> format_name = $ format_name ; }
\brief Fill this object with another file.
@param string $file File_id or local/remote path to the file.
@param string $format_name Format name of the file (audio, document, ...)
\ brief Fill this object with another file .