code: def _within_margins(
      margin: int, threshold: int, value1: float, value2: float
  ) -> bool:
      """Placeholder docstring"""
      diff = abs(value1 - value2)
      return 0 < diff * margin <= threshold
  
file_path: sagemaker-python-sdk/src/sagemaker/serve/utils/tuning.py
imports: from __future__ import absolute_import
  import logging
  from time import perf_counter
  import collections
  from multiprocessing.pool import ThreadPool
  from math import ceil
  import pandas
  from numpy import percentile, std
  from sagemaker.serve.model_server.djl_serving.utils import _tokens_from_chars, _tokens_from_words
  from sagemaker.base_predictor import PredictorBase
label_desc: Use image node_id 8 for calling a global function with example usage: _within_margins(margin, threshold, value1, value2) and returns: unknown