Method __xor__

crates/vm/src/builtins/set.rs:656–670

(
        &self,
        other: PyObjectRef,
        vm: &VirtualMachine,
    )

    }

    fn __xor__(
        &self,
        other: PyObjectRef,
        vm: &VirtualMachine,
    ) -> PyResult<PyArithmeticValue<Self>> {
        if let Ok(other) = AnySet::try_from_object(vm, other) {
            Ok(PyArithmeticValue::Implemented(self.op(
                other,
                PySetInner::symmetric_difference,
                vm,
            )?))
        } else {
            Ok(PyArithmeticValue::NotImplemented)
        }
    }

    #[pymethod]
    pub fn add(&self, item: PyObjectRef, vm: &VirtualMachine) -> PyResult<()> {