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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def configure_createfor(self, ns, definition):
 """ Register a create-for relation endpoint. The definition's func should be a create function, which must: - accept kwargs for the new instance creation parameters - return the created instance :param ns: the namespace :param definition: the endpoint definition """

        @self.add_route(ns.relation_path, Operation.CreateFor, ns)
        @request(definition.request_schema)
        @response(definition.response_schema)
        @wraps(definition.func)
        def create(**path_data):
            request_data = load_request_data(definition.request_schema)
            response_data = require_response_data(definition.func(**merge_data(path_data, request_data)))
            headers = encode_id_header(response_data)
            definition.header_func(headers, response_data)
            response_format = self.negotiate_response_content(definition.response_formats)
            return dump_response_data(
                definition.response_schema,
                response_data,
                Operation.CreateFor.value.default_code,
                headers=headers,
                response_format=response_format,
            )

        create.__doc__ = "Create a new {} relative to a {}".format(pluralize(ns.object_name), ns.subject_name)