code: def delete_key(key_name, stash, passphrase, backend):
      
      stash = _get_stash(backend, stash, passphrase)
  
      for key in key_name:
          try:
              click.echo('Deleting key {0}...'.format(key))
              stash.delete(key_name=key)
          except GhostError as ex:
              sys.exit(ex)
      click.echo('Keys deleted successfully')
docs: Delete a key from the stash
  
      `KEY_NAME` is the name of the key to delete
      You can provide that multiple times to delete multiple keys at once