protected Data getContextData() {
		cb.updateNow();
		ListingActionContext context =
			(ListingActionContext) cb.getProvider().getActionContext(null);
		return plugin.getDataUnit(context);
	}
Execute the specified DataPlugin action using the current program context.
Assertion failures will occur if action not found or is not enabled for the
current context.
@param name action name
@param waitForCompletion if true invocation will wait for action to complete
its execution in the swing thread, if false it will be scheduled and return immediately.
Ghidra/Features/Base/src/test.slow/java/ghidra/app/plugin/core/data/AbstractDataActionTest.java