public Builder mergeLocation(
                im.turms.server.common.access.client.dto.model.user.UserLocation value) {
            if (locationBuilder_ == null) {
                if (((bitField0_ & 0x00000010) != 0)
                        && location_ != null
                        && location_ != im.turms.server.common.access.client.dto.model.user.UserLocation
                                .getDefaultInstance()) {
                    getLocationBuilder().mergeFrom(value);
                } else {
                    location_ = value;
                }
            } else {
                locationBuilder_.mergeFrom(value);
            }
            if (location_ != null) {
                bitField0_ |= 0x00000010;
                onChanged();
            }
            return this;
        }
<code>optional .im.turms.proto.UserLocation location = 5;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/model/user/NearbyUser.java