new_contents: """Basic tools for managing disk usage in the boot2docker VM
  Usage:
    disk inspect
    disk cleanup_containers
    disk cleanup_images
  
  Commands:
    inspect             Prints VM disk usage information
    cleanup_containers  Cleans docker containers that have exited
    cleanup_images      Removes docker images that can be removed without the --force flag
  """
  
  from docopt import docopt
  
  from ..payload import Payload
  from ..commands.disk import inspect_vm_disk, cleanup_inactive_containers, cleanup_images
  
  def main(argv):
      args = docopt(__doc__, argv)
      if args['inspect']:
          return Payload(inspect_vm_disk)
      elif args['cleanup_containers']:
          return Payload(cleanup_inactive_containers)
      elif args['cleanup_images']:
          return Payload(cleanup_images)
  
subject: add the actual file