@Override
    public void deserialize(Field field, FieldReader reader) {
        reader.read(field, this);
    }
WARNING!&nbsp;Only to be used by deserializers when reference is not fully deserialized yet!&nbsp;Sets
an {@link Annotation} that this AnnotationReference shall refer to.

@param reference an Annotation that this AnnotationReference shall refer to.
@throws IllegalArgumentException if the given annotation has a type that is not compatible with this reference
document/src/main/java/com/yahoo/document/annotation/AnnotationReference.java