In https://developers.google.com/+/api/latest/activities#object.attachments, there would have attachments in activities search
response, but how to call it?
In here: http://code.google.com/apis/explorer/#_s=plus&_v=v1&_m=activities.search even I select all the fields
section, there have no attachments.
The final call url here
https://www.googleapis.com/plus/v1/activities?maxResults=20&orderBy=recent &query=keyword&fields=id%2Citems(access%2Cactor%2Caddress%2Cannotation%2CcrosspostSource%2Cgeocode%2Cid%2Ckind%2CplaceId%2CplaceName%2Cplaceholder%2Cpublished%2Cradius%2Ctitle%2Cupdated%2Curl%2Cverb)%2Ckind%2CnextLink%2CnextPageToken%2CselfLink%2Ctitle%2Cupdated&pp=1&key=APIKEY
So, how to get attachments?