text: 
  
  class Orders {
  	constructor() {
  		this.execFunction = null;
  	}
  
  	cancelSubscription(options) {
  		return this.execFunction('orders.cancelSubscription', options);
  	}
  
  	changeState(options) {
  		return this.execFunction('orders.changeState', options);
  	}
  
  	get(options) {
  		return this.execFunction('orders.get', options);
  	}
  
  	getAmount(options) {
  		return this.execFunction('orders.getAmount', options);
  	}
  
  	getById(options) {
  		return this.execFunction('orders.getById', options);
  	}
  
  	getUserSubscriptionById(options) {
  		return this.execFunction('orders.getUserSubscriptionById', options);
  	}
  
  	getUserSubscriptions(options) {
  		return this.execFunction('orders.getUserSubscriptions', options);
  	}
  
  	updateSubscription(options) {
  		return this.execFunction('orders.updateSubscription', options);
  	}
  }
  
  module.exports = Orders;
  
  