public Builder clearLocation() {
            bitField0_ &= ~0x00000040;
            location_ = null;
            if (locationBuilder_ != null) {
                locationBuilder_.dispose();
                locationBuilder_ = null;
            }
            onChanged();
            return this;
        }
<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