| Attribute | Description |
|---|---|
| name | (Required) Name of the parameter/variable. |
| default | (Optional) Value to set parameter to if it does not exist. |
| max | (Optional) The maximum valid value; used only for range validation. |
| min | (Optional) The minimum valid value; used only for range validation. |
| pattern | (Optional) A JavaScript regular expression that the parameter must match; used only for regex or regular_expression validation. |
| type | (Optional) The valid format for the data. |