waitForProperty is undefined?

Using ember-concurrency 0.8.15 (latest)

import { task, waitForProperty } from 'ember-concurrency';


	_validityChanged: task(function*() {
		while (true) {
			yield waitForProperty(this, "validations.isValid", value => true);
			this._publishValidity();
		}
	}).on('init'),

Error:

rsvp.js:27 Uncaught TypeError: (0 , _emberConcurrency.waitForProperty) is not a function
    at Class.<anonymous> (validated-component.js:27)
    at Generator.next (<anonymous>)
    at Class._resumeGenerator (-task-instance.js:431)
    at Class._handleResolvedContinueValue (-task-instance.js:586)
    at Class._proceed (-task-instance.js:550)
    at Class._scheduleProceed (-task-instance.js:538)
    at Class._start (-task-instance.js:242)
    at Class._startTaskInstance (-scheduler.js:104)
    at Class._flushQueues (-scheduler.js:80)
    at Class.schedule (-scheduler.js:62)

[machty]

@BryanCrotaz i believe that idea is on the cli team’s agenda

[lukemelia]

side note: ember-cli-dependency-lint can be helpful in flagging this sort of risk