How to use the responses.mock.activate function in responses

    @mock_responses.activate
    def test_format_inline_images_with_many_img_tags(self):
        self.givenTestImage()
        input_email = {'body': '<div><img src="http://test-url.png"><img src="http://test-url.png"></div>'}

        output_email = email_parser.format_inline_images(input_email, self.fail_if_called)

        self.assertHasCount(output_email['body'], 'src="data:', 2)

    @responses.activate
    def test_call_raises_custom_error(self):
        client = Client()
        responses.add(
            responses.POST, client.server, json={"error": {"code": 1, "message": "Custom message"}}, status=200
        )
        with pytest.raises(ClientException, match=r"Custom message") as e:
            client.call("aria2.method")
            assert e.code == 1

    @responses.activate
    def test_insert_secret_with_aria2_method_call(self):
        # create client with secret
        secret = "hello"
        client = Client(secret=secret)

        responses.add_callback(responses.POST, client.server, callback=self.call_params_callback)

        # create params
        params = ["param1", "param2"]
        # copy params and insert secret
        expected_params = deepcopy(params)
        expected_params.insert(0, f"token:{secret}")

        # call function and assert result
        resp = client.call(client.ADD_URI, params, insert_secret=True)
        assert resp == expected_params

    @mock_responses.activate
    def test_format_inline_images_without_content_type(self):
        self.givenTestImage(content_type='')
        input_email = {'body': '<div><img src="http://test-url.png"></div>'}

        output_email = email_parser.format_inline_images(input_email, self.fail_if_called)

        self.assertStartsWith(output_email['body'], '<div></div>

    @mock_responses.activate
    def test_with_missing_team(self):
        mock_responses.add(
            mock_responses.POST,
            github.GRAPHQL_URL,
            body='''{
                "data": {
                    "viewer": {
                        "login": "user",
                        "organization": {
                            "teams": {
                                "edges": [
                                    {"cursor": "cursor1"}
                                ],
                                "nodes": [
                                    {"slug": "team1"}
                                ]

    @mock_responses.activate
    def test_makes_request_when_key_is_set(self):
        mock_responses.add(mock_responses.DELETE, 'https://api.sendgrid.com/v3/user/webhooks/parse/settings/my-domain')

        action = DeleteSendgridMailbox('my-key')

        action('my-client-id', 'my-domain')

        self.assertEqual(len(mock_responses.calls), 1)

    @mock_responses.activate
    def test_format_inline_images_with_img_tag(self):
        self.givenTestImage()
        input_email = {'body': '<div><h3>test image</h3><img src="http://test-url.png"></div>'}

        output_email = email_parser.format_inline_images(input_email, self.fail_if_called)

        self.assertStartsWith(output_email['body'], '<div><h3>test image</h3></div>

    @mock.activate
    def test_parse_date_types(self, patched_server_info):
        mock.add(
            mock.POST, self.url, status=200,
            body=(
                'a\n' +
                'Date\n' +
                '2012-10-25\n'
            )
        )

        table = Table(
            't1', self.metadata(),
            Column('a', types.Date)
        )

        rv = self.session.query(*table.c).first()

    @mock_responses.activate
    def test_format_inline_images_with_query_string(self):
        url = 'http://test-url.png?foo=bar&baz=qux'
        self.givenTestImage(url=url, content_type='')
        input_email = {'body': f'<div><h3>test image</h3><img src="{url}"></div>'}

        output_email = email_parser.format_inline_images(input_email, self.fail_if_called)

        self.assertStartsWith(output_email['body'], '<div><h3>test image</h3></div>

    @mock.activate
    def test_parse_nullable_type(self):
        mock.add(
            mock.POST, self.url, status=200,
            body=(
                'a\n' +
                'String\n' +
                '\\N\n' +
                '\\\\N\n' +
                '\n'
            )
        )

        table = Table(
            't1', self.metadata(),
            Column('a', types.String)
        )