get https://api.postgrid.com/v1/intl_addver/completions/
Get previews of autocompleted international addresses. The results are biased based on your current IP address. The results have both of type 'Address' and 'BuildingNumber'. If the type is 'Address', its id can be used in autocomplete POST endpoint to retrieve the complete address. Otherwise, the id can be used as a 'container' to retrieve further information using the 'advanced' option described below.