code: def find_urls(observatory, frametype, start, end, on_gaps='error',
                connection=None, **connection_kw):
      
      return connection.find_urls(observatory, frametype, start, end,
                                  on_gaps=on_gaps)
docs: Find the URLs of files of a given data type in a GPS interval.
  
      See also
      --------
      gwdatafind.http.HTTPConnection.find_urls
      FflConnection.find_urls
          for details on the underlying method(s)