Creates a model composite annotation definition.
| Name | Type | Description |
| BaseAnnotation | ModelAnnotation | Input ModelAnnotation object that specifies the base annotation in the ModelCompositeAnnotation. Valid base annotation can be a ModelDimension, ModelFeatureControlFrame, ModelSurfaceTextureSymbol, ModelLeaderNote and ModelHoleThreadNote. |
| AnnotationType | Variant | Optional input String value that specifies the annotation type of the ModelCompositeAnnotation. This is an optional argument whose default value is null. |