[page:String url] — the path or URL to the file. This can also be a
[link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI].<br/>
[page:Function onLoad] — Will be called when load completes. The argument will be the loaded [page:Animation animation].<br/>
[page:Function onLoad] — Will be called when load completes. The argument will be the loaded [page:AnimationClip animation clips].<br/>
[page:Function onProgress] — Will be called while load progresses. The argument will be the XMLHttpRequest instance, which contains .[page:Integer total] and .[page:Integer loaded] bytes.<br/>
[page:Function onError] — Will be called if load errors.<br/><br/>
Begin loading from url and pass the loaded animation to onLoad.