@Override
	public void reload() {

		if (!(mainHB instanceof GHelpBroker)) {
			// not our broker installed; can't force a reload
			return;
		}

		GHelpBroker gHelpBroker = (GHelpBroker) mainHB;
		gHelpBroker.reload();
	}
Returns the master help set (the one into which all other help sets are merged).
@return the help set
Ghidra/Framework/Docking/src/main/java/docking/help/HelpManager.java