@abstractproperty
  def path(self):
Should generate a return url with messages.
dataset/ETHPy150Open pantsbuild/pants/src/python/pants/engine/exp/fs.py/Stat.path--crossover with--dataset/ETHPy150Open tophatmonocle/ims_lti_py/tests/tool_provider_tests.py/TestToolProvider.test_return_url_with_messages