code: def refresh_listing():
      
      for program in get_programs():
          if re.match(r'^[a-zA-Z_][a-zA-Z_0-9]*$', program) is not None:
              globals()[program] = partial(_run_program, program)
  
      globals()["_"] = _underscore_run_program
docs: Refreshes the list of programs attached to the perform module from
      the path