Add functions for getting JSON-LD representations of

MDAppointmentCancellationStatus and MDAttendanceStatus

src/enums/MDAppointmentCancellationStatus.php

@@ -97,6 +97,21 @@ public function getTledName(MDTlLoader $tlLoader):string {
 
     }
 
+    /**
+     * Returns the JSON-LD representation of the attendance mode.
+     *
+     * @return string
+     */
+    public function getJsonLd():string {
+
+        return match($this) {
+            self::scheduled_done => "https://schema.org/EventScheduled",
+            self::cancelled => "https://schema.org/EventCancelled",
+            default => throw new MDpageParameterNotFromListException("Unknown JSON LD for attendance status"),
+        };
+
+    }
+
     /**
      * Provides the option to serialize as a string during json_encode().
      *

src/enums/MDAttendanceStatus.php

@@ -97,6 +97,21 @@ public function getTledName(MDTlLoader $tlLoader):string {
 
     }
 
+    /**
+     * Returns the JSON-LD representation of the attendance mode.
+     *
+     * @return string
+     */
+    public function getJsonLd():string {
+
+        return match($this) {
+            self::online => "https://schema.org/OnlineEventAttendanceMode",
+            self::offline => "https://schema.org/OfflineEventAttendanceMode",
+            default => throw new MDpageParameterNotFromListException("Unknown JSON LD for attendance status"),
+        };
+
+    }
+
     /**
      * Provides the option to serialize as a string during json_encode().
      *