public com.google.protobuf.ByteString getUriBytes() {
        java.lang.Object ref = uri_;
        if (ref instanceof String) {
          com.google.protobuf.ByteString b =
              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
          uri_ = b;
          return b;
        } else {
          return (com.google.protobuf.ByteString) ref;
        }
      }
<pre>
Required. URI of the image in Cloud Storage. For example,
`gs://bucket/inputs/image.png`. Only PNG and JPEG images are supported.
</pre>

<code>string uri = 1 [(.google.api.field_behavior) = REQUIRED];</code>

@return The bytes for uri.
java-video-transcoder/proto-google-cloud-video-transcoder-v1/src/main/java/com/google/cloud/video/transcoder/v1/Overlay.java