protected void close() {
		for (StackEditorProvider editor : editorMap.values()) {
			editor.dispose();
		}
		editorMap.clear();
	}
Check for any data types being edited for the given data
type manager that is being closed.
if pgm is null then all editors will be checked.
@param program the program whose stack editors are to be checked for changes. 
If null, then check all editors for save.
@return true if all stack editors were resolved and can close now; return
false if the user canceled the save action
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/stackeditor/StackEditorManager.java