@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(name_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, name_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(2, getCreateTime());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(3, getUpdateTime());
    }
    com.google.protobuf.GeneratedMessageV3.serializeStringMapTo(
        output, internalGetLabels(), LabelsDefaultEntryHolder.defaultEntry, 4);
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(displayName_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, displayName_);
    }
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(description_)) {
      com.google.protobuf.GeneratedMessageV3.writeString(output, 6, description_);
    }
    if (((bitField0_ & 0x00000004) != 0)) {
      output.writeMessage(7, getApplicationConfigs());
    }
    if (((bitField0_ & 0x00000008) != 0)) {
      output.writeMessage(8, getRuntimeInfo());
    }
    if (state_ != com.google.cloud.visionai.v1.Application.State.STATE_UNSPECIFIED.getNumber()) {
      output.writeEnum(9, state_);
    }
    if (billingMode_
        != com.google.cloud.visionai.v1.Application.BillingMode.BILLING_MODE_UNSPECIFIED
            .getNumber()) {
      output.writeEnum(12, billingMode_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Billing mode of the application.
</pre>

<code>.google.cloud.visionai.v1.Application.BillingMode billing_mode = 12;</code>

@return The billingMode.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Application.java