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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 load(source):
 """ Load OpenCorpora corpus. The ``source`` can be any of the following: - a file name/path - a file object - a file-like object - a URL using the HTTP or FTP protocol """

    parser = get_xml_parser()
    return etree.parse(source, parser=parser).getroot()