# File lib/hashery/lru_hash.rb, line 345
      def insert_after(node)
        raise 'Cannot insert after self' if equal? node
        return self if node.succ.equal? self

        unlink

        self.succ = node.succ
        self.pred = node

        node.succ.pred = self if node.succ
        node.succ = self

        self
      end