SelectMessage(
    declarations=[],
    selectors=[
        VariableExpression(
            arg=VariableRef(name="a"), annotation=FunctionAnnotation(name="integer", options=[]), attributes=[]
        ),
        VariableExpression(
            arg=VariableRef(name="b"), annotation=FunctionAnnotation(name="integer", options=[]), attributes=[]
        ),
    ],
    variants=[
        Variant(
            keys=[CatchallKey(value=None), CatchallKey(value=None)],
            value=[
                "a = ",
                VariableExpression(arg=VariableRef(name="a"), annotation=None, attributes=[]),
                ", b = ",
                VariableExpression(arg=VariableRef(name="b"), annotation=None, attributes=[]),
            ],
        )
    ],
)
