code: def get_fixture_node(self, app_label, fixture_prefix):
          
          app_nodes = self.get_app_nodes(app_label=app_label)
          nodes = [
              node for node in app_nodes if node[1].startswith(fixture_prefix)
              ]
  
          if len(nodes) > 1:
              raise MultipleFixturesFound(
                  "The following fixtures with prefix '%s' are found in app '%s'"
                  ": %s" % (
                      fixture_prefix, app_label, ', '.join(
                          [node[1] for node in nodes]
                      )
                  )
              )
          elif len(nodes) == 0:
              raise FixtureNotFound("Fixture with prefix '%s' not found in app "
                                    "'%s'" % (fixture_prefix, app_label))
          return nodes
docs: Get all fixtures in given app with given prefix.
          :param str app_label: App label
          :param str fixture_prefix: first part of the fixture name
          :return: list of found fixtures.