List all contact groups owned by the authenticated user. Members of the contact groups are not populated.
Query parameters
Optional. A field mask to restrict which fields on the group are returned. Defaults to metadata, groupType, memberCount, and name if not set or set to empty. Valid fields are: * clientData * groupType * memberCount * metadata * name
Optional. The maximum number of resources to return. Valid values are between 1 and 1000, inclusive. Defaults to 30 if not set or set to 0.
Optional. The next_page_token value returned from a previous call to ListContactGroups. Requests the next page of resources.
Optional. A sync token, returned by a previous call to contactgroups.list. Only resources changed since the sync token was created will be returned.
Response
Successful response