@java.lang.Override
    public com.google.cloud.visionai.v1.Application.BillingMode getBillingMode() {
      com.google.cloud.visionai.v1.Application.BillingMode result =
          com.google.cloud.visionai.v1.Application.BillingMode.forNumber(billingMode_);
      return result == null
          ? com.google.cloud.visionai.v1.Application.BillingMode.UNRECOGNIZED
          : result;
    }
<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