at the end of the day, it was inevitable

src/AppBundle/Configuration/ConfigurationParameterMutableInterface.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace AppBundle\Configuration;
+
+/**
+ * Interface ConfigurationParameterMutableInterface
+ * @package AppBundle\Configuration
+ */
+interface ConfigurationParameterMutableInterface
+{
+
+    /**
+     * Set section
+     *
+     * @param string $section Section name.
+     *
+     * @return ConfigurationParameterMutableInterface
+     */
+    public function setSection($section);
+
+    /**
+     * Set value
+     *
+     * @param mixed $value Parameter value.
+     *
+     * @return ConfigurationParameterMutableInterface
+     */
+    public function setValue($value);
+
+    /**
+     * Set title
+     *
+     * @param string $title Human readable parameter title.
+     *
+     * @return ConfigurationParameterMutableInterface
+     */
+    public function setTitle($title);
+}