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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 send_update(url_id, dataset):
 """ Send request to Seeder's API with data changed by user. Args: url_id (str):
 ID used as identification in Seeder. dataset (dict):
 WA-KAT dataset sent from frontend. """

    data = _convert_to_seeder_format(dataset)

    if not data:
        return

    try:
        _send_request(url_id, json=data, req_type=requests.patch)
    except Exception as e:
        sys.stderr.write("Seeder PATCH error: ")  # TODO: better!
        sys.stderr.write(str(e.message))
        return None