Return a token with the name of two guests

modules/opd_podcast/opd_podcast.module

@@ -80,6 +80,14 @@ function opd_podcast_tokens(string $type, array $tokens, array $data, array $opt
           assert(!is_null($guests[0]));
           assert($guests[0] instanceof TermInterface);
 
+          // TODO: allow for more than two guests.
+          if (count($guests) === 2) {
+            assert($guests[1] instanceof TermInterface);
+
+            $replacements[$original] = sprintf('%s %s %s', $guests[0]->label(), t('and'), $guests[1]->label());
+            break;
+          }
+
           $replacements[$original] = $guests[0]->label();
           break;
       }

modules/opd_podcast/tests/src/Kernel/PodcastTokenTest.php

@@ -44,6 +44,7 @@ class PodcastTokenTest extends BrowserTestBase {
   public function podcastNodeProvider(): \Generator {
     return [
       yield 'Single guest' => [['Matt Glaman'], 'Matt Glaman'],
+      yield 'Two guests' => [['Emma Horrell', 'Luke McCormick'], 'Emma Horrell and Luke McCormick'],
     ];
   }