@API(help="Frames")
FrameV2[] frames; // TODO: create interface or superclass (e.g., FrameBase) for FrameV2
// Non-version-specific filling into the impl
@Override public Frames createImpl() {
Frames f = new Frames();
f.key = this.key;
f.column = this.column; // NOTE: this is needed for request handling, but isn't really part of state
if (null != frames) {
f.frames = new Frame[frames.length];