How to use the mpcontribs-client.mpcontribs.client.__init__.FidoClientGlobalHeaders function in mpcontribs-client

def load(self):
        http_client = FidoClientGlobalHeaders(headers=self.headers)
        loader = Loader(http_client)
        protocol = "https" if self.apikey else "http"
        origin_url = f"{protocol}://{self.host}/apispec.json"
        spec_dict = loader.load_spec(origin_url)
        spec_dict["host"] = self.host
        spec_dict["schemes"] = [protocol]

        config = {
            "validate_responses": False,
            "use_models": False,
            "include_missing_properties": False,
            "formats": [email_format, url_format],
        }
        bravado_config = bravado_config_from_config_dict(config)
        for key in set(bravado_config._fields).intersection(set(config)):
            del config[key]