@operator.setter<EOL><INDENT>def operator(self, operator):<DEDENT>
if operator is None:<EOL><INDENT>raise ValueError("<STR_LIT>")<EOL><DEDENT>self._operator = operator<EOL>
Sets the operator of this V1LabelSelectorRequirement.
operator represents a key's relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

:param operator: The operator of this V1LabelSelectorRequirement.
:type: str