code: def __init__(
      self,
      batch_size,
      num_workers,
      start_step=2,
      steps_per_output=50,
      monitor_memory=False,
      logging_fn=None,
  ):
      from deepspeed.utils import logger
  
      self.start_time = 0
      self.end_time = 0
      self.started = False
      self.batch_size = batch_size
      if batch_size is None:
          self.batch_size = 1
      self.num_workers = num_workers
      self.start_step = start_step
      self.epoch_count = 0
      self.local_step_count = 0
      self.total_step_count = 0
      self.total_elapsed_time = 0
      self.steps_per_output = steps_per_output
      self.monitor_memory = monitor_memory
      self.logging = logging_fn
      if self.logging is None:
          self.logging = logger.info
      self.initialized = False
  
      if self.monitor_memory and not PSUTILS_INSTALLED:
          raise ImportError(
              "Unable to import 'psutils', please install package"
          )
  
imports: import time
  import torch
  from numpy import mean
  from deepspeed.utils.logging import log_dist
  from deepspeed import comm
label_desc: Use image node_id 1 to create a new ThroughputTimer object  with example: obj = ThroughputTimer(batch_size, num_workers, start_step, steps_per_output, monitor_memory, logging_fn)