async def METHOD_NAME(self, http_request):
    with FakeSpan(name="parent") as parent:
        client = MockClient(http_request)
        await client.tracing_attr()
    assert len(parent.children) == 2
    assert parent.children[0].name == "MockClient.__init__"
    assert parent.children[1].name == "MockClient.tracing_attr"
    assert parent.children[1].kind == SpanKind.INTERNAL
    assert parent.children[1].attributes == {"foo": "bar"}