public GoSlice getFunSlice() throws IOException {
		long funcCount = getFuncCount();
		long funOffset = context.getStructureEnd() - programContext.getPtrSize();
		return new GoSlice(funOffset, funcCount, funcCount, programContext);
	}
Returns an artificial slice that contains the address of the functions that implement
the interface methods.

@return artificial slice that contains the address of the functions that implement
the interface methods
@throws IOException if error reading method info
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/golang/rtti/GoItab.java