Bug fix.

Reviewed-on: #11

src/Request.php

@@ -113,4 +113,10 @@ class Request {
     }
   }
 
+  /**
+   * Change or set the value of a parameter.
+   */
+  public function setQueryParameter(string $key, string $value = "") {
+    $this->post[$key] = $value;
+  }
 }

src/TwigRender.php

@@ -63,7 +63,7 @@ class TwigRender {
   /**
    * Add global variable(s) to template.
    *
-   * @return string
+   * @return object
    */
   public function addGlobals($name, $value) : self {
     $this->twig->addGlobal($name, $value);