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