Method pack_into

crates/stdlib/src/pystruct.rs:271–283

(
            &self,
            buffer: ArgMemoryBuffer,
            offset: isize,
            args: PosArgs,
            vm: &VirtualMachine,
        )

        #[pymethod]
        fn pack_into(
            &self,
            buffer: ArgMemoryBuffer,
            offset: isize,
            args: PosArgs,
            vm: &VirtualMachine,
        ) -> PyResult<()> {
            let offset = get_buffer_offset(buffer.len(), offset, self.size(), true, vm)?;
            buffer.with_ref(|data| {
                self.spec
                    .pack_into(&mut data[offset..], args.into_vec(), vm)
            })
        }

        #[pymethod]
        fn unpack(&self, data: ArgBytesLike, vm: &VirtualMachine) -> PyResult<PyTupleRef> {