How to make in WordPress admin panel sortable column for the custom field, that count the number of page impressions?

I just should make
Method 1

 $object->set('meta_key', 'post_views_count');

Method 2

 $query->set( 'meta_key', 'post_views_count' );

Method 3

 $vars['meta_key'] = 'post_views_count';

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