Add @return void on last public methods

src/Node/Expression/CallExpression.php

@@ -23,6 +23,9 @@ abstract class CallExpression extends AbstractExpression
         $this->compileCallable($compiler);
     }
 
+    /**
+     * @return void
+     */
     protected function compileCallable(Compiler $compiler)
     {
         $twigCallable = $this->getAttribute('twig_callable');

src/Node/ModuleNode.php

@@ -57,6 +57,9 @@ final class ModuleNode extends Node
         $this->setSourceContext($source);
     }
 
+    /**
+     * @return void
+     */
     public function setIndex($index)
     {
         $this->setAttribute('index', $index);

src/Parser.php

@@ -264,6 +264,9 @@ class Parser
         $this->traits[] = $trait;
     }
 
+    /**
+     * @return void
+     */
     public function embedTemplate(ModuleNode $template)
     {
         $template->setIndex(mt_rand());

src/TokenStream.php

@@ -37,6 +37,9 @@ final class TokenStream
         return implode("\n", $this->tokens);
     }
 
+    /**
+     * @return void
+     */
     public function injectTokens(array $tokens)
     {
         $this->tokens = array_merge(\array_slice($this->tokens, 0, $this->current), $tokens, \array_slice($this->tokens, $this->current));