listStargazers method
Lists people who have starred the specified repo.
API docs: https://developer.github.com/v3/activity/starring/#list-stargazers
Implementation
Stream<User> listStargazers(RepositorySlug slug, {int perPage = 30}) {
return PaginationHelper(github).objects(
'GET', '/repos/${slug.fullName}/stargazers', User.fromJson,
params: {'per_page': perPage});
}