@Override
	public CodeBlockModel getActiveBlockModel(Program program, boolean includeExternals) {
		if (program == null) {
			return null;
		}
		return getModelInstance(activeBasicModel.modelClass, program, includeExternals);
	}
@see ghidra.app.services.BlockModelService#getActiveBlockModel(ghidra.program.model.listing.Program, boolean)
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/blockmodel/BlockModelServicePlugin.java