private void ensureNearbyUsersIsMutable() {
            if ((bitField0_ & 0x00000001) == 0) {
                nearbyUsers_ = new java.util.ArrayList<>(nearbyUsers_);
                bitField0_ |= 0x00000001;
            }
        }
Protobuf type {@code im.turms.proto.NearbyUsers}
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/user/NearbyUsers.java