private com.google.protobuf.SingleFieldBuilder<im.turms.server.common.access.client.dto.model.user.UserLocation, im.turms.server.common.access.client.dto.model.user.UserLocation.Builder, im.turms.server.common.access.client.dto.model.user.UserLocationOrBuilder> getLocationFieldBuilder() {
            if (locationBuilder_ == null) {
                locationBuilder_ = new com.google.protobuf.SingleFieldBuilder<>(
                        getLocation(),
                        getParentForChildren(),
                        isClean());
                location_ = null;
            }
            return locationBuilder_;
        }
<code>optional .im.turms.proto.UserLocation location = 7;</code>
turms-server-common/src/main/java/im/turms/server/common/access/client/dto/request/user/CreateSessionRequest.java