code: def print_header(name, underline=None, color=None):
      print()
      if color:
          print("%s%s%s" % (c_color % colors[color], name, c_normal))
      else:
          print(name)
      if underline and not color:
          print(underline * len(name))
  
file_path: sympy/bin/coverage_doctest.py
imports: from __future__ import print_function
  import os
  import sys
  import inspect
  from argparse import ArgumentParser, RawDescriptionHelpFormatter
  from sympy.utilities.misc import filldedent
label_desc: Use image node_id 1 for calling a global function with example usage: print_header(name, underline, color) without return types