code: def main(args=None):
      if args is None:
          args = sys.argv[1:]
  
      # TODO Handle library-wide options. Eg.:
      # --unicodedata
      # --verbose / other logging stuff
  
      # TODO Allow a way to run arbitrary modules? Useful for setting
      # library-wide options and calling another library. Eg.:
      #
      #   $ fonttools --unicodedata=... fontmake ...
      #
      # This allows for a git-like command where thirdparty commands
      # can be added.  Should we just try importing the fonttools
      # module first and try without if it fails?
  
      if len(sys.argv) < 2:
          sys.argv.append("help")
      if sys.argv[1] == "-h" or sys.argv[1] == "--help":
          sys.argv[1] = "help"
      mod = "fontTools." + sys.argv[1]
      sys.argv[1] = sys.argv[0] + " " + sys.argv[1]
      del sys.argv[0]
  
      import runpy
  
      runpy.run_module(mod, run_name="__main__")
  
label_desc: Use image node_id 1 for calling a global function with example usage: main(args) without return types