public function add_store( $store ) { if ( !
$store instanceof WP_Style_Engine_CSS_Rules_Store
) { _doing_it_wrong( __METHOD__,
__( '$store must be an instance of WP_Style_Engine_CSS_Rules_Store'
),
'6.1.0'
);
return $this;
} $this->stores
[ $store->
get_name() ] =
$store;
return $this;
} /**
* Adds rules to be processed.
*
* @since 6.1.0
*
* @param WP_Style_Engine_CSS_Rule|WP_Style_Engine_CSS_Rule[] $css_rules A single, or an array of,
* WP_Style_Engine_CSS_Rule objects
* from a store or otherwise.
* @return WP_Style_Engine_Processor Returns the object to allow chaining methods.
*/