/// <summary>
/// Gets a summarised type from a composite class which is just a type inheriting from object containing only the fields
/// in the composite class needed to create a summary
/// </summary>
/// <param name="extendedType">The composite class</param>
/// <returns>The summarised type</returns>
public Type GetSummarisedType(Collator coll, Dictionary <Type, TypeBuilder> typeBuilders, Type extendedType)
{
var dynamicProperties = coll.ContainerSummaryFields(extendedType)
.Select(p => new DynamicProperty(p.Name, p.PropertyType))
.ToArray();
return(GetCompositeClass(typeBuilders, typeof(object), dynamicProperties));
}