如何配置EF代码优先不映射特定类型？

public class NonMappedConverter<T> : ValueConverter<T, T>
{
    public NonMappedConverter(ConverterMappingHints mappingHints = null)
        : base(t => t, t => t, mappingHints)
    {
    }
}

protected override void OnModelCreating(ModelBuilder modelBuilder)
{
    modelBuilder.Entity<YourEntity>()
        .Property(e => e.YourProperty)
        .HasConversion(new NonMappedConverter<YourType>());
}