code: public String createXmlFrom(Collection<StorageAccount> accts,
                                  boolean includeCredentials,
                                  boolean includeOptions) {
          Element storageProviderAccounts =
              createDocumentFrom(accts, includeCredentials, includeOptions);
          Document document = new Document(storageProviderAccounts);
          XMLOutputter outputter = new XMLOutputter(Format.getPrettyFormat());
          return outputter.outputString(document);
      }
docs: Converts the provided DuraStore acct configuration into a stand-alone
  XML document. This is used for the DuraStore GET stores REST call.
  
  @param accts
  @return