decryptedMessageMediaDocument#b095434b thumb:bytes thumb_w:int thumb_h:int file_name:string mime_type:string size:int key:bytes iv:bytes = DecryptedMessageMedia;
t :: %TL.E2E.L8.DecryptedMessageMediaDocument{file_name: String.t, iv: [byte], key: [byte], mime_type: String.t, size: integer, thumb: [byte], thumb_h: integer, thumb_w: integer}