Function getById

getById(annotationId): JAppAnnotation
JMap.Application.Annotation.getById

Returns the annotation for the given id.
Parameters
- annotationId: string
  the given annotation id
Returns JAppAnnotation
Throws
if the annotationId param is not a valid string, or annotation is not found

Example
```
// return the annotation for the given id
JMap.Application.Annotation.getById("d68385b01be3c241c7b6298b2788839d")
```