+ /**
+ * Add one or multiple POST parameters.
+ * Automatically adds them as array or as string.
+ *
+ * @param string $key Parameter name
+ * @param string|array $values One or multiple values
+ */
+ public function addPostParameter($key, $values)
+ {
+ if (count($values) == 1) {
+ $values = reset($values);
+ }
+ $this->req->addPostParameter($key, $values);
+ }
+