code: public CloudStorageProviders listProviders(String accountId, String userId) throws ApiException {
      return listProviders(accountId, userId, null);
    }
docs: Get the Cloud Storage Provider configuration for the specified user.
  Retrieves the list of cloud storage providers enabled for the account and the configuration information for the user.  The {serviceId} parameter can be either the service name or serviceId.
  @param accountId The external account number (int) or account ID Guid. (required)
  @param userId The user ID of the user being accessed. Generally this is the user ID of the authenticated user, but if the authenticated user is an Admin on the account, this may be another user the Admin user is accessing. (required)
  @return CloudStorageProviders