code: def rbac_policy_create(request, **kwargs):
      
      body = {'rbac_policy': kwargs}
      rbac_policy = neutronclient(request).create_rbac_policy(
          body=body).get('rbac_policy')
      return RBACPolicy(rbac_policy)
docs: Create a RBAC Policy.
  
      :param request: request context
      :param target_tenant: target tenant of the policy
      :param tenant_id: owner tenant of the policy(Not recommended)
      :param object_type: network or qos_policy
      :param object_id: object id of policy
      :param action: access_as_shared or access_as_external
      :return: RBACPolicy object