static extern void _gs_getFriendsCount(IntCallbackDelegate successCallback, IntPtr onSuccessActionPtr, FailureCallbackDelegate failureCallback, IntPtr onFailureActionPtr);
static extern void _gs_removeFriend(string userId, IntCallbackDelegate successCallback, IntPtr onSuccessActionPtr, FailureCallbackDelegate failureCallback, IntPtr onFailureActionPtr);
static extern void _gs_removeFriendsByAuthIdentities(string providerId, string providerUserIdsJson, IntCallbackDelegate successCallback, IntPtr onSuccessActionPtr, FailureCallbackDelegate failureCallback, IntPtr onFailureActionPtr);
static extern void _gs_getNotificationsCount(string query, IntCallbackDelegate successCallback, IntPtr onSuccessActionPtr, FailureCallbackDelegate failureCallback, IntPtr onFailureActionPtr);