code: def copyout(self, dest: memoryview, src: cl.cl_mem):
      check(
          cl.clEnqueueReadBuffer(
              self.device.queue,
              src,
              False,
              0,
              len(dest) * dest.itemsize,
              from_mv(dest),
              0,
              None,
              None,
          )
      )
      self.device.synchronize()
  
imports: from __future__ import annotations
  from typing import Tuple, Optional, List
  import ctypes, functools, hashlib
  import gpuctypes.opencl
  from tinygrad.helpers import init_c_var, to_char_p_p, from_mv, OSX, DEBUG
  from tinygrad.dtype import ImageDType
  from tinygrad.codegen.kernel import LinearizerOptions
  from tinygrad.renderer.cstyle import OpenCLRenderer
  from tinygrad.device import Compiled, LRUAllocator
label_desc: Use image node_id 6 for calling the CLAllocator obj's underlying member method code with example usage: obj.copyout(dest, src) without return types