code: def get_key(key_name,
              value_name,
              jsonify,
              no_decrypt,
              stash,
              passphrase,
              backend):
      
      if value_name and no_decrypt:
          sys.exit('VALUE_NAME cannot be used in conjuction with --no-decrypt')
  
      stash = _get_stash(backend, stash, passphrase, quiet=jsonify or value_name)
  
      try:
          key = stash.get(key_name=key_name, decrypt=not no_decrypt)
      except GhostError as ex:
          sys.exit(ex)
  
      if not key:
          sys.exit('Key `{0}` not found'.format(key_name))
      if value_name:
          key = key['value'].get(value_name)
          if not key:
              sys.exit(
                  'Value name `{0}` could not be found under key `{1}`'.format(
                      value_name, key_name))
  
      if jsonify or value_name:
          click.echo(
              json.dumps(key, indent=4, sort_keys=False).strip('"'),
              nl=True)
      else:
          click.echo('Retrieving key...')
          click.echo('\n' + _prettify_dict(key))
docs: Retrieve a key from the stash
  
      \b
      `KEY_NAME` is the name of the key to retrieve
      `VALUE_NAME` is a single value to retrieve e.g. if the value
       of the key `test` is `a=b,b=c`, `ghost get test a`a will return
       `b`