public Builder addAllBlocks(
        java.lang.Iterable<? extends com.google.cloud.vision.v1p2beta1.Block> values) {
      if (blocksBuilder_ == null) {
        ensureBlocksIsMutable();
        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, blocks_);
        onChanged();
      } else {
        blocksBuilder_.addAllMessages(values);
      }
      return this;
    }
<pre>
List of blocks of text, images etc on this page.
</pre>

<code>repeated .google.cloud.vision.v1p2beta1.Block blocks = 4;</code>
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/Page.java