+ * Evaluate the content of a single token.
+ *
+ * @param \Civi\Token\TokenRow $row
+ * The record for which we want token values.
+ * @param string $entity
+ * The name of the token entity.
+ * @param string $field
+ * The name of the token field.
+ * @param mixed $prefetch
+ * Any data that was returned by the prefetch().
+ *
+ * @throws \CRM_Core_Exception