code: def get_price_estimate(self, start_latitude, start_longitude, end_latitude, end_longitude):
          
          endpoint = 'estimates/price'
          query_parameters = {
              'start_latitude': start_latitude,
              'start_longitude': start_longitude,
              'end_latitude': end_latitude,
              'end_longitude': end_longitude
          }
  
          return self.get_json(endpoint, 'GET', query_parameters, None, None)
docs: Returns the fare estimate based on two sets of coordinates.
          :param start_latitude: Starting latitude or latitude of pickup address.
          :param start_longitude: Starting longitude or longitude of pickup address.
          :param end_latitude: Ending latitude or latitude of destination address.
          :param end_longitude: Ending longitude or longitude of destination address.
          :return: JSON