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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 parse(self, fn):
 """ Parses a file into a lxml.etree structure with namespaces remove. This tree is added to self.iocs. :param fn: File to parse. :return: """

        ioc_xml = xmlutils.read_xml_no_ns(fn)
        if not ioc_xml:
            return False
        root = ioc_xml.getroot()
        iocid = root.get('id', None)
        if not iocid:
            return False
        self.iocs[iocid] = ioc_xml
        return True