private void createComboBoxes() {
		createComboBoxListeners();
		JComboBox<Function> leftComboBox = buildComboBox(LEFT);
		JComboBox<Function> rightComboBox = buildComboBox(RIGHT);
		comboBoxes = new Duo<>(leftComboBox, rightComboBox);
	}
Constructor

@param provider the comparison provider associated with this panel
@param tool the active plugin tool
@param model the comparison data model
Ghidra/Features/CodeCompare/src/main/java/ghidra/features/codecompare/plugin/MultiFunctionComparisonPanel.java