code: def state(self):
      return (self.mmap, self.manager.ptrs, self.manager.sizes)
  
file_path: ffcv/ffcv/memory_managers/os_cache.py
imports: from typing import TYPE_CHECKING
  import numpy
  import numba
  from .base import MemoryManager, MemoryContext
  from ..pipeline.compiler import Compiler
label_desc: Use image node_id 2 for calling the OSCacheContext obj's underlying member method code with example usage: obj.state() and returns: self,  self,  self