code: def transfer(self, dest: T, src: T, sz: int):
      check(hip.hipSetDevice(self.device.device))
      # TODO: hipMemcpyAsync, but you have to track the "src" buffer to not free it
      check(hip.hipMemcpy(dest, src, sz, hip.hipMemcpyDeviceToDevice))
  
imports: from __future__ import annotations
  import ctypes, functools, subprocess, io
  from typing import Tuple, TypeVar, List
  import gpuctypes.hip
  from tinygrad.helpers import DEBUG, getenv, init_c_var, compile_cuda_style, encode_args_cuda_style, time_execution_cuda_style
  from tinygrad.helpers import from_mv, round_up, to_mv
  from tinygrad.device import Compiled, LRUAllocator, MallocAllocator
  from tinygrad.renderer.cstyle import HIPRenderer
  from tinygrad.codegen.kernel import LinearizerOptions
label_desc: Use image node_id 8 for calling the HIPAllocator obj's underlying member method code with example usage: obj.transfer(dest, src, sz) without return types