code: @ReadOperation(produces = MediaType.APPLICATION_JSON_VALUE)
      public Map<?, ?> fetchAccountStatus(@Selector final String username, @Nullable final String providerId) {
          val results = new LinkedHashMap<>();
          val providers = applicationContext.getBeansOfType(DuoMultifactorAuthenticationProvider.class).values();
          providers
              .stream()
              .filter(Objects::nonNull)
              .map(DuoMultifactorAuthenticationProvider.class::cast)
              .filter(provider -> StringUtils.isBlank(providerId) || provider.matches(providerId))
              .forEach(p -> {
                  val duoService = p.getDuoAuthenticationService();
                  val accountStatus = duoService.getDuoUserAccount(username);
                  results.put(p.getId(),
                      CollectionUtils.wrap("duoApiHost", duoService.getApiHost(),
                          "name", p.getFriendlyName(),
                          "accountStatus", accountStatus
                      ));
              });
          return results;
  
      }
docs: Fetch account status map.
  
  @param username   the username
  @param providerId the provider id
  @return the map