Getting past events when using wp_query

I believe i did this once in the past but I cant find the code!

Something like so:

$args = array(
   'posts_per_page' => 6,
   'post_type' => 'event',
   'meta_query' => array(
      array(
      'key' => 'scope',
      'value' => 'past'
      )
   ),
'paged' => $paged
);

thanks,
alvar

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