<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _has_not_qual(ntd):
 """Return True if the qualifiers contain a 'NOT'"""

        for qual in ntd.Qualifier:
            if 'not' in qual:
                return True
            if 'NOT' in qual:
                return True
        return False