@java.lang.Override
      public int getCachedContentTokenCount() {
        return cachedContentTokenCount_;
      }
<pre>
Output only. Number of tokens in the cached part in the input (the cached
content).
</pre>

<code>int32 cached_content_token_count = 5 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>

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