567 …Array(v)&&(f.type='list')}f.type&&u.push(f)}return u.length?{context:l.walkContext,fields:u}:null}…
578 …' '),this.node(t.prelude)),t.block?this.node(t.block):this.chunk(';')},walkContext:'atrule'}}),572…  property
580 …ocationFromList(l),children:l}},generate:function(t){this.children(t)},walkContext:'atrulePrelude'…  property
582 …unction(t){'Declaration'===t.type&&this.chunk(';')})),this.chunk('}')},walkContext:'block'}}),576,…  property
589 ….important&&this.chunk(!0===t.important?'!important':'!'+t.important)},walkContext:'declaration'}}…  property
592 …){this.chunk(t.name),this.chunk('('),this.children(t),this.chunk(')')},walkContext:'function'}}),5…  property
604 …null!==t.children&&(this.chunk('('),this.children(t),this.chunk(')'))},walkContext:'function'}}),5…  property
605 …null!==t.children&&(this.chunk('('),this.children(t),this.chunk(')'))},walkContext:'function'}}),5…  property
607 …lock:n}},generate:function(t){this.node(t.prelude),this.node(t.block)},walkContext:'rule'}}),601,[…  property
609 …},generate:function(t){this.children(t,(function(){this.chunk(',')}))},walkContext:'selector'}}),6…  property
611 …canner.tokenStart),children:C}},generate:function(t){this.children(t)},walkContext:'stylesheet'}})…  property