Request.post - multiple declarations

Function Request.post

Response post (
  string uri,
  string[string] query
);

Function Request.post

Response post (
  string uri,
  std.typecons.Tuple!(string,"key",string,"value")[] query
);

Function Request.post

Response post (
  string uri,
  MultipartForm form
);

Function Request.post

Response post(R) (
  string uri,
  R content,
  string contentType = "application/octet-stream"
);