escapePrintNode example

$this->defaultStrategy = false;
            $this->safeVars = [];
            $this->blocks = [];
        } elseif ($node instanceof FilterExpression) {
            return $this->preEscapeFilterNode($node, $env);
        } elseif ($node instanceof PrintNode && false !== $type = $this->needEscaping($env)) {
            $expression = $node->getNode('expr');
            if ($expression instanceof ConditionalExpression && $this->shouldUnwrapConditional($expression, $env, $type)) {
                return new DoNode($this->unwrapConditional($expression, $env, $type), $expression->getTemplateLine());
            }

            return $this->escapePrintNode($node, $env, $type);
        }

        if ($node instanceof AutoEscapeNode || $node instanceof BlockNode) {
            array_pop($this->statusStack);
        } elseif ($node instanceof BlockReferenceNode) {
            $this->blocks[$node->getAttribute('name')] = $this->needEscaping($env);
        }

        return $node;
    }