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<?php class Jetpack_Modules_List_Table { protected $compat_fields = array( '_args', '_pagination_args', 'screen', '_actions', '_pagination' ); function __construct() { global $wp_version; if ( version_compare( $wp_version, '4.2-z', '>=' ) ) { array_push( $this->compat_fields, 'all_items' ); } } }

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