获取发出的好友申请

GetFriendApplicationListAsApplicantReq *req = [GetFriendApplicationListAsApplicantReq new];
req.offset = 0;
req.count = 20;
[[OIMManager manager] getFriendApplicationListAsApplicantWithReq:req
                                                       onSuccess:^(NSArray<OIMFriendApplication *> *items) {
                                                           [requestStore replaceSent:items];
                                                       }
                                                       onFailure:nil];