Limit the number of tags in the tag cloud widget

tag-cloud-number.php

//* Limit the number of tags in the tag cloud widget
add_filter( 'widget_tag_cloud_args', 'my_widget_tag_cloud_args' );
function my_widget_tag_cloud_args( $args ) {
  $args = array(
    'number' => 32,  
  );
return $args;
}