code: def set_current_sample(self, current_sample_id):
      self.current_sample_id = current_sample_id
  
file_path: ffcv/ffcv/memory_allocator.py
imports: import numpy
  from time import sleep
  from os import SEEK_END
  from multiprocessing import Value
  from .utils import align_to_page
  import ctypes
label_desc: Use image node_id 3 for calling the MemoryAllocator obj's underlying member method code with example usage: obj.set_current_sample(current_sample_id) without return types