def tagMap(self):
        """"Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping
            ASN.1 tags to ASN.1 objects contained within callee.
        """
        if self.tagSet:
            return Set.tagMap.fget(self)
        else:
            return self.componentType.tagMapUnique
"Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping
            ASN.1 tags to ASN.1 objects contained within callee.
        
stackoverflow/venv/lib/python3.6/site-packages/pyasn1/type/univ.py