@Override
		    	public FcgData load(Function f) throws Exception {
		    		return new ValidFcgData(f, new FunctionCallGraph());
		    	}
A factory that will create {@link FunctionCallGraph} data objects for a given function.  
Internally, this factory uses an MRU cache.
Ghidra/Features/GraphFunctionCalls/src/main/java/functioncalls/plugin/FcgDataFactory.java