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<?php declare(strict_types=1);
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namespace PhpParser;
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interface NodeTraverserInterface
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{
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    /**
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     * Adds a visitor.
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     *
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     * @param NodeVisitor $visitor Visitor to add
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     */
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    public function addVisitor(NodeVisitor $visitor);
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    /**
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     * Removes an added visitor.
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     *
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     * @param NodeVisitor $visitor
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     */
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    public function removeVisitor(NodeVisitor $visitor);
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    /**
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     * Traverses an array of nodes using the registered visitors.
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     *
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     * @param Node[] $nodes Array of nodes
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     *
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     * @return Node[] Traversed array of nodes
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     */
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    public function traverse(array $nodes) : array;
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}