@Nullable
	public TransformationApplier newApplierForCurrentWorkspace() {
		if (!workspaceManager.hasCurrentWorkspace())
			return null;
		InheritanceGraph inheritanceGraph = Objects.requireNonNull(graphService.getCurrentWorkspaceInheritanceGraph(), "Graph not created");
		MappingApplier mappingApplier = Objects.requireNonNull(mappingService.inCurrentWorkspace(), "Mapping applier not created");
		Workspace workspace = workspaceManager.getCurrent();
		return newApplier(workspace, inheritanceGraph, mappingApplier);
	}
@return Transformation applier for the {@link WorkspaceManager#getCurrent() current workspace}
or {@code null} if no workspace is currently open.
recaf-core/src/main/java/software/coley/recaf/services/transform/TransformationApplierService.java