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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 _get_skippers(configure, file_name=None):
 """ Returns the skippers of configuration. :param configure: The configuration of HaTeMiLe. :type configure: hatemile.util.configure.Configure :param file_name: The file path of skippers configuration. :type file_name: str :return: The skippers of configuration. :rtype: list(dict(str, str)) """


        skippers = []
        if file_name is None:
            file_name = os.path.join(os.path.dirname(os.path.dirname(
                os.path.dirname(os.path.realpath(__file__))
            )), 'skippers.xml')
        xmldoc = minidom.parse(file_name)
        skippers_xml = xmldoc.getElementsByTagName(
            'skippers'
        )[0].getElementsByTagName('skipper')
        for skipper_xml in skippers_xml:
            skippers.append({
                'selector': skipper_xml.attributes['selector'].value,
                'description': configure.get_parameter(
                    skipper_xml.attributes['description'].value
                ),
                'shortcut': skipper_xml.attributes['shortcut'].value
            })
        return skippers