{ "name": "RoleMapping", "description": "Map principals to roles", "properties": { "id": { "type": "string", "id": true, "generated": true }, "principalType": { "type": "string", "description": "The principal type, such as user, application, or role" }, "principalId": { "type": "string", "index": true } }, "relations": { "role": { "type": "belongsTo", "model": "Role", "foreignKey": "roleId" } } }