text: import click
  
  from .helpers import helpers
  
  
  @click.group(context_settings={'help_option_names': ['-h', '--help']})
  def cli():
      pass
  
  
  @cli.command(name='sum', help='Sum numbers.')
  @click.argument('numbers', type=click.INT, nargs=-1)
  def sum(numbers):
      click.echo(helpers.sum_numbers(numbers))
  
  
  @cli.command(name='sort', help='Sort numbers.')
  @click.argument('numbers', type=click.INT, nargs=-1)
  @click.option('--reverse', is_flag=True, default=False, help='Reverse result.')
  def sort(numbers, reverse):
      click.echo(' '.join(map(str, helpers.sort_numbers(numbers, reverse=reverse))))
  