Method recv_into

crates/stdlib/src/socket.rs:1664–1690

(
            &self,
            buf: ArgMemoryBuffer,
            nbytes: OptionalArg<isize>,
            flags: OptionalArg<i32>,
            vm: &VirtualMachine,
        )

        #[pymethod]
        fn recv_into(
            &self,
            buf: ArgMemoryBuffer,
            nbytes: OptionalArg<isize>,
            flags: OptionalArg<i32>,
            vm: &VirtualMachine,
        ) -> Result<usize, IoOrPyException> {
            let flags = flags.unwrap_or(0);
            let sock = self.sock()?;
            let mut buf = buf.borrow_buf_mut();
            let buf = &mut *buf;

            // Handle nbytes parameter
            let read_len = if let OptionalArg::Present(nbytes) = nbytes {
                let nbytes = nbytes
                    .to_usize()
                    .ok_or_else(|| vm.new_value_error("negative buffersize in recv_into"))?;
                nbytes.min(buf.len())
            } else {
                buf.len()
            };

            let buf = &mut buf[..read_len];
            self.sock_op(vm, SelectKind::Read, || {
                sock.recv_with_flags(unsafe { slice_as_uninit(buf) }, flags)
            })
        }

        #[pymethod]
        fn recvfrom(