code: def _alloc(self, size: int) -> cl.cl_mem:
      return checked(
          cl.clCreateBuffer(
              self.device.context,
              cl.CL_MEM_READ_WRITE,
              size,
              None,
              ctypes.byref(status := ctypes.c_int32()),
          ),
          status,
      )
  
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 2 for calling the CLAllocator obj's underlying member method code with example usage: obj._alloc(size) and returns: checked