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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 clean_up(group, identifier, date):
 """Delete all of a groups local mbox, index, and state files. :type group: str :param group: group name :type identifier: str :param identifier: the identifier for the given group. :rtype: bool :returns: True """

    #log.error('exception raised, cleaning up files.')
    glob_pat = '{g}.{d}.mbox*'.format(g=group, d=date)
    for f in glob(glob_pat):
        #log.error('removing {f}'.format(f=f))
        try:
            os.remove(f)
        except OSError:
            continue
    glob_pat = '{id}_state.json'.format(id=identifier)
    for f in glob(glob_pat):
        #log.error('removing {f}'.format(f=f))
        try:
            os.remove(f)
        except OSError:
            continue
    return True