diff --git a/src/Speakers/src/TwigExtension/SpeakersExtension.php b/src/Speakers/src/TwigExtension/SpeakersExtension.php
index 3dd5f64..be75c02 100644
--- a/src/Speakers/src/TwigExtension/SpeakersExtension.php
+++ b/src/Speakers/src/TwigExtension/SpeakersExtension.php
@@ -7,6 +7,9 @@ use Twig\TwigFunction;
 
 class SpeakersExtension extends AbstractExtension
 {
+    /**
+     * {@inheritDoc}
+     */
     public function getFunctions()
     {
         return [
@@ -15,6 +18,14 @@ class SpeakersExtension extends AbstractExtension
         ];
     }
 
+    /**
+     * Get the speakers for a session.
+     *
+     * @param array|object $session
+     * @param array $speakers
+     *
+     * @return array
+     */
     public function getSessionSpeakers($session, array $speakers): array
     {
         return collect($speakers)->filter(function ($speaker) use ($session): bool {
@@ -22,6 +33,14 @@ class SpeakersExtension extends AbstractExtension
         })->values()->toArray();
     }
 
+    /**
+     * Get the sessions for a speaker.
+     *
+     * @param array|object $speaker
+     * @param array $sessions
+     *
+     * @return array
+     */
     public function getSpeakerSessions($speaker, array $sessions): array
     {
         return collect($sessions)->filter(function ($session) use ($speaker): bool {