@classmethod
def fetch_by_iid(cls, project_id, merge_request_iid, api):
    merge_request = cls(api, {'iid': merge_request_iid, 'project_id': project_id})
    merge_request.refetch_info()
    return merge_request
@classmethod
def fetch_by_iid(cls, project_id, merge_request_iid, api):
    merge_request = cls(api, {'iid': merge_request_iid, 'project_id': project_id})
    merge_request.refetch_info()
    return merge_request