An ObjectMirror is a common superinterface of InstanceMirror, ClassMirror, and LibraryMirror that represents their shared functionality.
For the purposes of the mirrors library, these types are all object-like, in that they support method invocation and field access. Real Dart objects are represented by the InstanceMirror type.
See InstanceMirror, ClassMirror, and LibraryMirror.
invocation
on the reflectee of this ObjectMirror. [...]