public Builder mergeFrom(com.google.cloud.tpu.v1.Node other) {
      if (other == com.google.cloud.tpu.v1.Node.getDefaultInstance()) return this;
      if (!other.getName().isEmpty()) {
        name_ = other.name_;
        bitField0_ |= 0x00000001;
        onChanged();
      }
      if (!other.getDescription().isEmpty()) {
        description_ = other.description_;
        bitField0_ |= 0x00000002;
        onChanged();
      }
      if (!other.getAcceleratorType().isEmpty()) {
        acceleratorType_ = other.acceleratorType_;
        bitField0_ |= 0x00000004;
        onChanged();
      }
      if (!other.getIpAddress().isEmpty()) {
        ipAddress_ = other.ipAddress_;
        bitField0_ |= 0x00000008;
        onChanged();
      }
      if (!other.getPort().isEmpty()) {
        port_ = other.port_;
        bitField0_ |= 0x00000010;
        onChanged();
      }
      if (other.state_ != 0) {
        setStateValue(other.getStateValue());
      }
      if (!other.getHealthDescription().isEmpty()) {
        healthDescription_ = other.healthDescription_;
        bitField0_ |= 0x00000040;
        onChanged();
      }
      if (!other.getTensorflowVersion().isEmpty()) {
        tensorflowVersion_ = other.tensorflowVersion_;
        bitField0_ |= 0x00000080;
        onChanged();
      }
      if (!other.getNetwork().isEmpty()) {
        network_ = other.network_;
        bitField0_ |= 0x00000100;
        onChanged();
      }
      if (!other.getCidrBlock().isEmpty()) {
        cidrBlock_ = other.cidrBlock_;
        bitField0_ |= 0x00000200;
        onChanged();
      }
      if (!other.getServiceAccount().isEmpty()) {
        serviceAccount_ = other.serviceAccount_;
        bitField0_ |= 0x00000400;
        onChanged();
      }
      if (other.hasCreateTime()) {
        mergeCreateTime(other.getCreateTime());
      }
      if (other.hasSchedulingConfig()) {
        mergeSchedulingConfig(other.getSchedulingConfig());
      }
      if (networkEndpointsBuilder_ == null) {
        if (!other.networkEndpoints_.isEmpty()) {
          if (networkEndpoints_.isEmpty()) {
            networkEndpoints_ = other.networkEndpoints_;
            bitField0_ = (bitField0_ & ~0x00002000);
          } else {
            ensureNetworkEndpointsIsMutable();
            networkEndpoints_.addAll(other.networkEndpoints_);
          }
          onChanged();
        }
      } else {
        if (!other.networkEndpoints_.isEmpty()) {
          if (networkEndpointsBuilder_.isEmpty()) {
            networkEndpointsBuilder_.dispose();
            networkEndpointsBuilder_ = null;
            networkEndpoints_ = other.networkEndpoints_;
            bitField0_ = (bitField0_ & ~0x00002000);
            networkEndpointsBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getNetworkEndpointsFieldBuilder()
                    : null;
          } else {
            networkEndpointsBuilder_.addAllMessages(other.networkEndpoints_);
          }
        }
      }
      if (other.health_ != 0) {
        setHealthValue(other.getHealthValue());
      }
      internalGetMutableLabels().mergeFrom(other.internalGetLabels());
      bitField0_ |= 0x00008000;
      if (other.getUseServiceNetworking() != false) {
        setUseServiceNetworking(other.getUseServiceNetworking());
      }
      if (other.apiVersion_ != 0) {
        setApiVersionValue(other.getApiVersionValue());
      }
      if (symptomsBuilder_ == null) {
        if (!other.symptoms_.isEmpty()) {
          if (symptoms_.isEmpty()) {
            symptoms_ = other.symptoms_;
            bitField0_ = (bitField0_ & ~0x00040000);
          } else {
            ensureSymptomsIsMutable();
            symptoms_.addAll(other.symptoms_);
          }
          onChanged();
        }
      } else {
        if (!other.symptoms_.isEmpty()) {
          if (symptomsBuilder_.isEmpty()) {
            symptomsBuilder_.dispose();
            symptomsBuilder_ = null;
            symptoms_ = other.symptoms_;
            bitField0_ = (bitField0_ & ~0x00040000);
            symptomsBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getSymptomsFieldBuilder()
                    : null;
          } else {
            symptomsBuilder_.addAllMessages(other.symptoms_);
          }
        }
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      return this;
    }
<pre>
A TPU instance.
</pre>

Protobuf type {@code google.cloud.tpu.v1.Node}
java-tpu/proto-google-cloud-tpu-v1/src/main/java/com/google/cloud/tpu/v1/Node.java