Add ambiguous interface

src/AmbiguousInterface.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Ratp;
+
+interface AmbiguousInterface
+{
+    public function getAmbiguityMessage();
+
+    public function setAmbiguityMessage($ambiguityMessage);
+}

src/WrDirections.php

@@ -1,9 +1,9 @@
 <?php
+
 namespace Ratp;
 
-class WrDirections
+class WrDirections implements AmbiguousInterface
 {
-
     /**
      * @var string $ambiguityMessage
      */

src/WrItineraries.php

@@ -1,7 +1,8 @@
 <?php
+
 namespace Ratp;
 
-class WrItineraries
+class WrItineraries implements AmbiguousInterface
 {
     /**
      * @var string $ambiguityMessage

src/WrMission.php

@@ -1,7 +1,8 @@
 <?php
+
 namespace Ratp;
 
-class WrMission
+class WrMission implements AmbiguousInterface
 {
     /**
      * @var string $ambiguityMessage

src/WrMissions.php

@@ -1,9 +1,10 @@
 <?php
+
 namespace Ratp;
 
 use Mission;
 
-class WrMissions
+class WrMissions implements AmbiguousInterface
 {
     /**
      * @var string $ambiguityMessage

src/WrStations.php

@@ -1,9 +1,9 @@
 <?php
+
 namespace Ratp;
 
-class WrStations
+class WrStations implements AmbiguousInterface
 {
-
     /**
      * @var string $ambiguityMessage
      */