Support for casting

[vabic]

I want to do a search for

public class Item
{
    public string Name { get; set; } = String.Empty;
    public string Description { get; set; } = String.Empty;
    public int? Year { get; set; }
}

.filter(item, func)=> func.Contains(func.Concat(func.Cast(item.Year, "'Edm.String'")), searchBy)
cause error : cannot convert int to string;

should be equivalent to $filter=contains(concat(cast(Year, 'Edm.String')), {searchBy});