public Builder setRequests(
        int index, com.google.cloud.vision.v1p4beta1.AsyncAnnotateFileRequest value) {
      if (requestsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureRequestsIsMutable();
        requests_.set(index, value);
        onChanged();
      } else {
        requestsBuilder_.setMessage(index, value);
      }
      return this;
    }
<pre>
Required. Individual async file annotation requests for this batch.
</pre>

<code>
repeated .google.cloud.vision.v1p4beta1.AsyncAnnotateFileRequest requests = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/AsyncBatchAnnotateFilesRequest.java