code: def pretend_option(fn):
      # type: (FunctionType) -> FunctionType
      
  
      def set_pretend(ctx, param, value):     # pylint: disable=missing-docstring
          # type: (click.Context, str, Any) -> None
          from peltak.core import context
          from peltak.core import shell
  
          context.set('pretend', value or False)
          if value:
              shell.cprint('<90>{}', _pretend_msg())
  
      return click.option(
          '--pretend',
          is_flag=True,
          help=("Do not actually do anything, just print shell commands that"
                "would be executed."),
          expose_value=False,
          callback=set_pretend
      )(fn)
docs: Decorator to add a --pretend option to any click command.
  
      The value won't be passed down to the command, but rather handled in the
      callback. The value will be accessible through `peltak.core.context` under
      'pretend' if the command needs it. To get the current value you can do:
  
          >>> from peltak.commands import click, root_cli
          >>> from peltak.core import context
          >>>
          >>> @root_cli.command('my-command')
          >>> @pretend_option
          >>> def my_command():
          ...     pretend = context.get('pretend', False)
  
      This value will be accessible from anywhere in the code.