code: def get_startups_filtered_by(self, filter_='raising'):
      
      url = _STARTUP_RAISING.format(c_api=_C_API_BEGINNING,
                                                                           api=_API_VERSION,
                                                                           filter_=filter_,
                                                                           at=self.access_token)
      return _get_request(url)
docs: Get startups based on which companies are raising funding