public long getUserIds(int index) {
        return userIds_.getLong(index);
    }
<code>repeated int64 user_ids = 1;</code>

@param index The index of the element to return.
@return The userIds at the given index.
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/relationship/QueryRelationshipsRequest.java