A list of the metadata associated with this declaration.
Let D be the declaration this mirror reflects. If D is decorated with annotations A1, ..., An where n > 0, then for each annotation Ai associated with D, 1 <= i <= n, let ci be the constant object specified by Ai. Then this method returns a list whose members are instance mirrors on c1, ..., cn. If no annotations are associated with D, then an empty list is returned.
If evaluating any of c1, ..., cn would cause a compilation error the effect is the same as if a non-reflective compilation error had been encountered.
List<InstanceMirror> get metadata;