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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_audits():
 """Get OS hardening PAM authentication audits. :returns: dictionary of audits """

    audits = []

    settings = utils.get_settings('os')

    if settings['auth']['pam_passwdqc_enable']:
        audits.append(PasswdqcPAM('/etc/passwdqc.conf'))

    if settings['auth']['retries']:
        audits.append(Tally2PAM('/usr/share/pam-configs/tally2'))
    else:
        audits.append(DeletedFile('/usr/share/pam-configs/tally2'))

    return audits