import BpmnRules from 'bpmn-js/lib/features/rules/BpmnRules'; import inherits from 'inherits'; function CustomRules(eventBus) { BpmnRules.call(this, eventBus); } inherits(CustomRules, BpmnRules); CustomRules.prototype.canDrop = function () { return false; }; CustomRules.prototype.canMove = function () { return false; }; export default CustomRules;