GithubUserModelMirrorRefPath typedef
GithubUserModelMirrorRefPath = _$GithubUserModelMirrorRefPath
It can be defined as an empty ModelRef<GithubUserModel>.
GithubUserModelMirrorRefPath("xxx") // Define as a path.
Implementation
typedef GithubUserModelMirrorRefPath = _$GithubUserModelMirrorRefPath;