docs: def list_key_policies(key_id, limit=None, marker=None, region=None, key=None,
                        keyid=None, profile=None):
      '''
      List key_policies for the specified key.
  
      CLI example::
  
          salt myminion boto_kms.list_key_policies 'alias/mykey'
      '''
      conn = _get_conn(region=region, key=key, keyid=keyid, profile=profile)
  
      if key_id.startswith('alias/'):
          key_id = _get_key_id(key_id)
      r = {}
      try:
          key_policies = conn.list_key_policies(
              key_id,
              limit=limit,
              marker=marker
          )
          # TODO: handle limit, marker and truncation automatically.
          r['key_policies'] = key_policies['PolicyNames']
      except boto.exception.BotoServerError as e:
          r['error'] = __utils__['boto.get_error'](e)
      return r