def get_all_object_editor_js_templates():
    object_editors_js = ''

    all_object_classes = Registry.get_all_object_classes()
    for obj_cls in all_object_classes.values():
        if obj_cls.has_editor_js_template():
            object_editors_js += obj_cls.get_editor_js_template()

    return object_editors_js
create and return a BaseGrouper, which is an internal
dataset/ETHPy150Open oppia/oppia/core/domain/obj_services.py/get_all_object_editor_js_templates--crossover with--dataset/ETHPy150Open pydata/pandas/pandas/core/groupby.py/_get_grouper