Google people API: how to create a contact?

[mgc]

I can read all contacts from Google using People API:

Code: Pascal  [Select][+][-]

1. uses
2. googlepeople, googleservice, googleclient
3. var
4.   Resp: TListConnectionsResponse;  
5.   Per: TPerson;
6. begin
7.   Resp := FPeopleAPI.PeopleConnectionsResource.List('people/me',  
8.   'personFields=names,emailAddresses');
9.    for Per in Resp.connections do
10.      if Length(Per.Names)>0 then
11.        Memo1.Lines.Add(Per.Names[0].displayName+': '+Per.emailAddresses[0].Value)
12. end;
13.  

However, there is no method to create a contact in Lazarus client library, although there is a method called "people.createContact" in the API reference (https://developers.google.com/people/api/rest/v1/people/createContact).

Please, how could I create a contact using Google People API?