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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def find_urls(observatory, frametype, start, end, on_gaps='error', connection=None, **connection_kw):
 """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) """

    return connection.find_urls(observatory, frametype, start, end,
                                on_gaps=on_gaps)