function fireDataStateChangeAsync(callback) {
		if (!timeout) {
			timeout = setTimeout(function() {
				timeout = undefined;
				var aCallbacksCopy = aDataStateCallbacks;
				aDataStateCallbacks = [];
				aCallbacksCopy.forEach(function(cb) {
					cb();
				});
			}, 0);
		}
		aDataStateCallbacks.push(callback);
	}
Sets the given data state's model messages to the messages for the given resolved path in the
binding's model.

@param {sap.ui.model.DataState} oDataState The binding's data state
@param {string} [sResolvedPath] The binding's resolved path
@private