code: def _sharex(ax1, ax2):
      if hasattr(ax1.axes, "sharex"):
          ax1.axes.sharex(ax2)
      else:
          ax1.get_shared_x_axes().join(ax1, ax2)
  
imports: import inspect
  import operator
  import os
  import warnings
  from contextlib import contextmanager
  from io import StringIO
  from math import log
  from pprint import pprint
  import numpy
label_desc: Use image node_id 19 for calling a global function with example usage: _sharex(ax1, ax2) without return types