How to use the editor/Editor.Editor function in editor

function createEditorInstance(doc, pane, visibleRange) {
        var $editorHolder = pane.$el || pane; // To handle actual pane mock or a fake container
        var editor = new Editor(doc, true, $editorHolder.get(0), visibleRange);

        Editor.setUseTabChar(EDITOR_USE_TABS);
        Editor.setSpaceUnits(EDITOR_SPACE_UNITS);

        if (pane.addView) {
            pane.addView(editor);
            editor._paneId = pane.id;
        }

        EditorManager._notifyActiveEditorChanged(editor);

        return editor;
    }

function _createEditorForDocument(doc, makeMasterEditor, container, range, editorOptions) {
        var editor = new Editor(doc, makeMasterEditor, container, range, editorOptions);

        editor.on("focus", function () {
            _notifyActiveEditorChanged(editor);
        });

        editor.on("beforeDestroy", function () {
            if (editor.$el.is(":visible")) {
                _saveEditorViewState(editor);
            }
        });

        return editor;
    }

function _createEditorForDocument(doc, makeMasterEditor, container, range) {
        var editor = new Editor(doc, makeMasterEditor, container, range);

        $(editor).on("focus", function () {
            _notifyActiveEditorChanged(this);
        });
        
        return editor;
    }

function _createEditorForDocument(doc, makeMasterEditor, container, range) {
        var editor = new Editor(doc, makeMasterEditor, container, range);

        $(editor).on("focus", function () {
            _notifyActiveEditorChanged(this);
        });
        
        $(editor).on("beforeDestroy", function () {
            if (editor.$el.is(":visible")) {
                _saveEditorViewState(editor);
            }
        });
        
        return editor;
    }

function _createEditorForDocument(doc, makeMasterEditor, container, range, additionalKeys) {
        var mode = EditorUtils.getModeFromFileExtension(doc.file.fullPath);
        
        return new Editor(doc, makeMasterEditor, mode, container, additionalKeys, range);
    }

function _createEditorForDocument(doc, makeMasterEditor, container, range, additionalKeys) {
        var mode = EditorUtils.getModeFromFileExtension(doc.file.fullPath);
        
        return new Editor(doc, makeMasterEditor, mode, container, additionalKeys, range);
    }