Not documented.
Source
@DomName('DataTransferItem.webkitGetAsEntry')
@DocsEditable()
@SupportedBrowser(SupportedBrowser.CHROME)
@SupportedBrowser(SupportedBrowser.SAFARI)
@Experimental()
Entry getAsEntry() => wrap_jso(_blink.BlinkDataTransferItem.instance.webkitGetAsEntry_Callback_0_(unwrap_jso(this)));