Migrate address field

I am currently searching for a example to migrate data into an address field in Drupal 8 without any luck for now.

Has someone a hint for me on how to map the fields?

I tried the following:

my.migrate.yml file:

'field_date_address/address_line1': date_tmp_address_address_line1'field_date_address/locality': date_tmp_address_locality'field_date_address/postal_code': date_tmp_address_postal_code

Callback:

$row->setSourceProperty('date_tmp_address_address_line1', 'Teststreet 18');$row->setSourceProperty('date_tmp_address_locality', 'Test locallity');$row->setSourceProperty('date_tmp_address_postal_code', '12345');