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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 chk_qualifiers(self):
 """Check format of qualifier"""

        if self.name == 'id2gos':
            return
        for ntd in self.associations:
            # print(ntd)
            qual = ntd.Qualifier
            assert isinstance(qual, set), '{NAME}: QUALIFIER MUST BE A LIST: {NT}'.format(
                NAME=self.name, NT=ntd)
            assert qual != set(['']), ntd
            assert qual != set(['-']), ntd
            assert 'always' not in qual, 'SPEC SAID IT WOULD BE THERE'