code: def parse(input, server=default_erg_server, params=None, headers=None):
      
      return next(parse_from_iterable([input], server, params, headers), None)
docs: Request a parse of *input* on *server* and return the response.
  
      Args:
          input (str): sentence to be parsed
          server (str): the url for the server (the default LOGON server
              is used by default)
          params (dict): a dictionary of request parameters
          headers (dict): a dictionary of additional request headers
      Returns:
          A ParseResponse containing the results, if the request was
          successful.
      Raises:
          requests.HTTPError: if the status code was not 200