| modelValidationAnnotation | String | @javax.validation.<br>constraints.NotNull | Annotation for mandatory (NonNull) fields. Can be null/empty. |
| modelNamePrefix | String | Empty | Sets the prefix for GraphQL model classes (type, input, interface, enum, union). |
| modelNameSuffix | String | Empty | Sets the suffix for GraphQL model classes (type, input, interface, enum, union). |
| subscriptionReturnType | String | Empty | Return type for subscription methods. For example: `org.reactivestreams.Publisher`, `io.reactivex.Observable`, etc. |
| generateEqualsAndHashCode | Boolean | False | Specifies whether generated model classes should have equals and hashCode methods defined. |
| generateToString | Boolean | False | Specifies whether generated model classes should have toString method defined. |