message GetFileRequest {
  required string url = 1;
  required string target_filename = 2;
  optional uint64 limit_bytes = 3;
  optional bool clean_path = 4 [default = false];
  optional bool decompress = 5 [default = false];
  repeated string execlude_files = 6;
  optional string download_mod = 7;
  optional string download_param = 8;
}