private void ensureIncludedObjectPrefixesIsMutable() {
      if (!includedObjectPrefixes_.isModifiable()) {
        includedObjectPrefixes_ =
            new com.google.protobuf.LazyStringArrayList(includedObjectPrefixes_);
      }
      bitField0_ |= 0x00000001;
    }
<pre>
Describes prefixes of objects to be transformed.
</pre>

Protobuf type {@code google.cloud.storagebatchoperations.v1.PrefixList}
java-storagebatchoperations/proto-google-cloud-storagebatchoperations-v1/src/main/java/com/google/cloud/storagebatchoperations/v1/PrefixList.java