public void setOverlay(OverlayAddressSpace spc) throws AddressFormatException {
			if (overlay == spc) {
				return;
			}
			overlay = spc;
			((PackedEncodeOverlay) mainQuery).setOverlay(spc);
			((PackedDecodeOverlay) mainResponse).setOverlay(spc);
			((PackedDecodeOverlay) callbackQuery).setOverlay(spc);
			((PackedEncodeOverlay) callbackResponse).setOverlay(spc);
		}
Set up encoders and decoders for functions in an overlay space
@param program is the active Program
@param spc is the initial overlay space to set up for
@throws AddressFormatException if address translation is not supported for the overlay
Ghidra/Features/Decompiler/src/main/java/ghidra/app/decompiler/DecompInterface.java