class_docstr: Create an experiment with time/memory checkpoints
code: def _consumed(self):
      cpu_ram_cons = self.cpu_ram_used() - self.cpu_ram_used_start
      gpu_ram_cons = self.gpu_ram_used() - self.gpu_ram_used_start
      # print(f"gpu started with {self.gpu_ram_used_start}")
      # print(f"gpu consumed {gpu_ram_cons}")
      return cpu_ram_cons, gpu_ram_cons
  
imports: import gc
  import logging
  import os
  import psutil
  import sys
  import threading
  import time
  import weakref
  from IPython import get_ipython
  from IPython.core.magics.namespace import NamespaceMagics
  from collections import namedtuple
  from .cell_logger import CellLogger, b2mb, int2width, get_nvml_gpu_id
label_desc: Use image node_id 18 for calling the IPyExperiments obj's underlying member method code with example usage: obj._consumed() and returns: cpu_ram_cons,  gpu_ram_cons