How do you populate an address field using Deluge?

How do you populate an address field using Deluge?

I can't see this documented anywhere. There is auto complete but it seems buggy. Would be great if you could create a documentation page for this. Same for Name fields (there appears to be no autocomplete at all for Name).

For reference:
  1. input.Address.address_line_1 = address_line_1;
  2. input.Address.address_line_2 = address_Line_2;
  3. input.Address.district_city = address_city;
  4. input.Address.postal_Code = address_postal_Code;