code: def tab_in_leading(s):
      """Returns True if there are tabs in the leading whitespace of a line,
      including the whitespace of docstring code samples."""
      n = len(s) - len(s.lstrip())
      if not s[n : n + 3] in ["...", ">>>"]:
          check = s[:n]
      else:
          smore = s[n + 3 :]
          check = s[:n] + smore[: len(smore) - len(smore.lstrip())]
      return not (check.expandtabs() == check)
  
imports: from os import walk, sep, pardir
  from os.path import split, join, abspath, exists, isfile
  from glob import glob
  import re
  import random
  import ast
  from sympy.testing.pytest import raises
  from sympy.testing.quality_unicode import _test_this_file_encoding
label_desc: Use image node_id 1 for calling a global function with example usage: tab_in_leading(s) and returns: unknown