docs: def project_versions(self, project):
          """Get a list of version Resources present on a project.
  
          :param project: ID or key of the project to get versions from
          :type project: str
          :rtype: List[Version]
          """
          r_json = self._get_json('project/' + project + '/versions')
          versions = [
              Version(self._options, self._session, raw_ver_json) for raw_ver_json in r_json]
          return versions