old_contents: from argparse import RawDescriptionHelpFormatter
  from ..utils.notebooks import current_env, Notebook
  from conda.cli import common
  from ..env import from_environment
  
  
  description = """
  Attach a Conda environment into a notebook
  """
  
  example = """
  examples:
      conda env attach notebook.ipynb
      conda env attach -n darth/deathstar notebook.ipynb
  """
  
  
  def configure_parser(sub_parsers):
      p = sub_parsers.add_parser(
          'attach',
          formatter_class=RawDescriptionHelpFormatter,
          description=description,
          help=description,
          epilog=example,
      )
      group = p.add_mutually_exclusive_group(required=True)
      group.add_argument(
          '-n', '--name',
          action='store',
          help='local environment definition',
          default=None
      )
      group.add_argument(
          '-r', '--remote',
          action='store',
          help='remote environment definition',
          default=None
      )
      p.add_argument(
          '--force',
          action='store_true',
          default=False,
          help='Replace existing environment definition'
      )
      p.add_argument(
          'notebook',
          help='notebook file',
          action='store',
          default=None
      )
      common.add_parser_json(p)
      p.set_defaults(func=execute)
  
  
  def execute(args, parser):
      if args.name is not None:
          prefix = common.get_prefix(args)
          content = from_environment(args.name, prefix).to_yaml()
      else:
          content = "remote: {}".format(args.remote)
  
      print("Environment {} will be attach into {}".format(args.name, args.notebook))
      nb = Notebook(args.notebook)
      if nb.inject(content, args.force):
          print("Done.")
      else:
          print("The environment couldn't be attached due:")
          print(nb.msg)
  
new_contents: from argparse import RawDescriptionHelpFormatter
  from ..utils.notebooks import current_env, Notebook
  from conda.cli import common
  from ..env import from_environment
  
  
  description = """
  Attach a Conda environment into a notebook
  """
  
  example = """
  examples:
      conda env attach -n root notebook.ipynb
      conda env attach -r user/environment notebook.ipynb
  """
  
  
  def configure_parser(sub_parsers):
      p = sub_parsers.add_parser(
          'attach',
          formatter_class=RawDescriptionHelpFormatter,
          description=description,
          help=description,
          epilog=example,
      )
      group = p.add_mutually_exclusive_group(required=True)
      group.add_argument(
          '-n', '--name',
          action='store',
          help='local environment definition',
          default=None
      )
      group.add_argument(
          '-r', '--remote',
          action='store',
          help='remote environment definition',
          default=None
      )
      p.add_argument(
          '--force',
          action='store_true',
          default=False,
          help='Replace existing environment definition'
      )
      p.add_argument(
          'notebook',
          help='notebook file',
          action='store',
          default=None
      )
      common.add_parser_json(p)
      p.set_defaults(func=execute)
  
  
  def execute(args, parser):
      if args.name is not None:
          prefix = common.get_prefix(args)
          content = from_environment(args.name, prefix).to_yaml()
      else:
          content = "remote: {}".format(args.remote)
  
      print("Environment {} will be attach into {}".format(args.name, args.notebook))
      nb = Notebook(args.notebook)
      if nb.inject(content, args.force):
          print("Done.")
      else:
          print("The environment couldn't be attached due:")
          print(nb.msg)
  
subject: Update conda env attach help