def METHOD_NAME(self):
    """Active parent should not be picked up by child."""
    with self.tracer.start_active_span("parent"):
        response = self.client.send_sync("no_parent")
        self.assertEqual("no_parent::response", response)
    spans = self.tracer.finished_spans()
    self.assertEqual(len(spans), 2)
    child_span = get_one_by_operation_name(spans, "send")
    self.assertIsNotNone(child_span)
    parent_span = get_one_by_operation_name(spans, "parent")
    self.assertIsNotNone(parent_span)
    # Here check that there is no parent-child relation.
    self.assertIsNotChildOf(child_span, parent_span)