code: def read(self, size=-1):
      if not self._initialized:
          self._read_init()
          self._initialized = True
  
      offset = self._offset
      size = self._size if size < 0 else size
      end = min(self._size, offset + size)
      result = self._mv[offset:end]
      self._offset = end
      return result
  
imports: import asyncio
  import os
  from abc import ABC, abstractmethod
  from concurrent.futures import Executor
  from typing import Any, Optional, Union
  from ..lib.aio import AioFileObject
label_desc: Use image node_id 7 for calling the BufferWrappedFileObject obj's underlying member method code with example usage: obj.read(size) and returns: result