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Readme > Explain print_node (#5595)

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@ -229,7 +229,8 @@ Or with Xdebug:
vendor/bin/rector process src/Controller --dry-run --xdebug
```
To assist with echo-style debugging rector provides a `rd()` helper method which is useful to pretty-print AST-nodes:
To assist with echo-style debugging rector provides a [`print_node()` helper](tests/debug_functions.php) method
which is useful to pretty-print AST-nodes:
```php
/**
@ -237,7 +238,7 @@ To assist with echo-style debugging rector provides a `rd()` helper method which
*/
public function refactor(Node $node): ?Node
{
rd($node);
print_node($node);
die;
}
```