Method setitem

crates/vm/src/builtins/weakproxy.rs:112–120

(
        &self,
        needle: PyObjectRef,
        value: PyObjectRef,
        vm: &VirtualMachine,
    )

    }

    fn setitem(
        &self,
        needle: PyObjectRef,
        value: PyObjectRef,
        vm: &VirtualMachine,
    ) -> PyResult<()> {
        let obj = self.try_upgrade(vm)?;
        obj.set_item(&*needle, value, vm)
    }

    fn delitem(&self, needle: PyObjectRef, vm: &VirtualMachine) -> PyResult<()> {
        let obj = self.try_upgrade(vm)?;