| id | String | The UUID for this user attribute. Generated when the user attribute is created. | [optional] |
| mandatory | Boolean | A flag indicating if users must have a value for this user attribute. | |
| name | String | The name of this user attribute. | |
| systemDefined | Boolean | A flag indicating if this user attribute is one of the system defined user attributes. | |
| type | TypeEnum | Type of user attribute. Currently only used to specify the type of contact if the attribute is to be used for OTP delivery. | [optional] |
| unique | Boolean | A flag indicating if this attribute is intended to be unique. | |