code: def ax_label(s):
      if s in AX_LABEL:
          return AX_LABEL[s]
      return s
  
file_path: sockeye/sockeye_contrib/plot_metrics.py
imports: from argparse import ArgumentParser
  from bisect import insort
  from collections import defaultdict
  from os import path
  import matplotlib.pyplot
  import numpy
label_desc: Use image node_id 1 for calling a global function with example usage: ax_label(s) and returns: s, AX_LABEL