Implementing a Type Field copy with Reflection?

In my Type I have a Method which copies all the fields of the type from the argument's same-type object

i.e.

Type MyType

  Field Field_a:Int
  Field Field_b:String

  Method Copy(_source:MyType)
    
    Field_a = _source.Field_a
    Field_b = _source.Field_b

  End Method
End Type

I'd like to use reflection here instead. My feeble start is below, but I'm a bit lost re Sets Gets and navigating Fields generally.

		Local self_id:TTypeId		=TTypeId.ForObject( Self)
		Local source_id:TTypeId 		= TTypeId.ForObject(_source)
		Local source_field_list:TList 	= source_id.Fields()
		Local source_field:TField 		= TField(source_field_list.First())
		
		For Local self_field:TField=EachIn self_id.EnumFields()
			self_field.Set Self, source_field.Get()
			source_field = OK, Now I admit I'm lost! These Sets and Gets confuse me...
		
		Next

Any help greatly appreciated!

Thanks.

-David