Add function to check if a process type has a dedicated data type

representing it

src/enums/MDProcessType.php

@@ -118,4 +118,21 @@ enum MDProcessType implements MDValueEnumInterface, JsonSerializable {
         return $this->name;
 
     }
+
+    /**
+     * Determines if there is a dedicated data type for the present process type in md.
+     *
+     * @return boolean
+     */
+    public function hasOwnProcessType():bool {
+
+        return match ($this) {
+            self::exhibition => true,
+            self::appointment => true,
+            self::loan_incoming => true,
+            self::loan_outgoing => true,
+            default => false,
+        };
+
+    }
 }