code: def cli(ctx, list, dir, files, project_dir, sayno):
      
  
      exit_code = 0
  
      if list:
          exit_code = Examples().list_examples()
      elif dir:
          exit_code = Examples().copy_example_dir(dir, project_dir, sayno)
      elif files:
          exit_code = Examples().copy_example_files(files, project_dir, sayno)
      else:
          click.secho(ctx.get_help())
          click.secho(Examples().examples_of_use_cad())
  
      ctx.exit(exit_code)
docs: Manage verilog examples.\n
         Install with `apio install examples`