@java.lang.Override
  public final boolean isInitialized() {
    byte isInitialized = memoizedIsInitialized;
    if (isInitialized == 1) return true;
    if (isInitialized == 0) return false;

    memoizedIsInitialized = 1;
    return true;
  }
<pre>
Optional. Include prefixes of the objects to be transformed.
* Supports full object name
* Supports prefix of the object name
* Wildcards are not supported
* Supports empty string for all objects in a bucket.
</pre>

<code>repeated string included_object_prefixes = 2 [(.google.api.field_behavior) = OPTIONAL];
</code>

@param index The index of the value to return.
@return The bytes of the includedObjectPrefixes at the given index.
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/PrefixList.java