code: def send(self, relative_path, http_method, **requests_args):
          
          url = urljoin(self.base_url, relative_path)
  
          return self.session.request(http_method, url, **requests_args)
docs: Subclasses must implement this method, that will be used to send API requests with proper auth
          :param relative_path: URL path relative to self.base_url
          :param http_method: HTTP method
          :param requests_args: kargs to be sent to requests
          :return: