public function stylesheets(string $collection, ?string $format = null) : string {
        return $this->serve($collection, 'stylesheets', $format);
    }
public function stylesheets(string $collection, ?string $format = null) : string {
        return $this->serve($collection, 'stylesheets', $format);
    }
public function stylesheets ( string $ collection , ? string $ format = null ) : string { return $ this -> serve ( $ collection , 'stylesheets' , $ format ) ; }
Serve the stylesheets for a given collection.
Serve the stylesheets for a given collection .