@SuppressWarnings("unchecked")
  private void copyEmail(Map<String, Object> map, VCard card) {
    getListMap("emailAddresses", map)
        .ifPresent(
            v ->
                v.forEach(
                    email ->
                        getString("address", email)
                            .ifPresent(addr -> card.addEmail(new Email(addr)))));
  }
Transforms from a Microsoft Graph contacts resource to a VCard as defined by
https://developer.microsoft.com/en-us/graph/docs/api-reference/v1.0/resources/contact.

<p>TODO: Handle contact lists (folders)
extensions/data-transfer/portability-data-transfer-microsoft/src/main/java/org/datatransferproject/transfer/microsoft/transformer/contacts/ToVCardTransformer.java