@java.lang.Override
    public int getTotalBillableCharacters() {
      return totalBillableCharacters_;
    }
<pre>
The total number of billable characters counted across all instances from
the request.
</pre>

<code>int32 total_billable_characters = 2;</code>

@return The totalBillableCharacters.
java-vertexai/proto-google-cloud-vertexai-v1/src/main/java/com/google/cloud/vertexai/api/CountTokensResponse.java