code: def _register_with_pkg_resources(cls):
          
          try:
              import pkg_resources
              # access an attribute in case a deferred importer is present
              pkg_resources.__name__
          except ImportError:
              return
  
          # Since pytest tests are always located in the file system, the
          #  DefaultProvider is appropriate.
          pkg_resources.register_loader_type(cls, pkg_resources.DefaultProvider)
docs: Ensure package resources can be loaded from this loader. May be called
          multiple times, as the operation is idempotent.