public Builder addResultAnnotationKeys(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      ensureResultAnnotationKeysIsMutable();
      resultAnnotationKeys_.add(value);
      bitField0_ |= 0x00000080;
      onChanged();
      return this;
    }
<pre>
A list of annotation keys to specify the annotations to be retrieved and
returned with each search result.
Annotation granularity must be GRANULARITY_ASSET_LEVEL and its search
strategy must not be NO_SEARCH.
</pre>

<code>repeated string result_annotation_keys = 8;</code>

@param value The resultAnnotationKeys to add.
@return This builder for chaining.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/SearchAssetsRequest.java