/// <summary>
/// Returns whether or not the uri refers to a function call
/// </summary>
/// <param name="uri">The uri to extend</param>
/// <returns>whether or not the uri refers to a function call</returns>
public static bool IsFunction(this ODataUri uri)
{
return(uri.CheckLastSegment <FunctionSegment>(f => f.Function.IsFunction()) ||
uri.CheckLastTwoSegments <FunctionSegment, ParametersExpressionSegment>(f => f.Function.IsFunction(), p => true));
}