About structured data

Hi,

About a year ago, i asked about below

“would it be possible to apply structured data only to posts with an average rating of 2.5 or higher than 3?”

I got the answer like below code

function blazzdev_structured_data( $structuredData ) {
  if( (rmp_get_avg_rating() * 10 ) < 30) {
    return ''; 
  }
  return $structuredData;
}

add_filter( 'rmp_structured_data', 'blazzdev_structured_data' );

But is this code still works?

Thank you.