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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 transform_to_mods_multimono(marc_xml, uuid, url):
 """ Convert `marc_xml` to multimonograph MODS data format. Args: marc_xml (str):
 Filename or XML string. Don't use ``\\n`` in case of filename. uuid (str):
 UUID string giving the package ID. url (str):
 URL of the publication (public or not). Returns: list: Collection of transformed xml strings. """

    marc_xml = _read_content_or_path(marc_xml)

    transformed = xslt_transformation(
        marc_xml,
        _absolute_template_path("MARC21toMultiMonographTitle.xsl")
    )

    return _apply_postprocessing(
        marc_xml=marc_xml,
        xml=transformed,
        func=mods_postprocessor.postprocess_multi_mono,
        uuid=uuid,
        url=url,
    )