code: public ApiResponse<ModelApiResponse> tenantInfoWithHttpInfo(ApiRequestAuthSchemeLookupData lookupData) throws ApiException {
          com.squareup.okhttp.Call call = tenantInfoValidateBeforeCall(lookupData, null, null);
          Type localVarReturnType = new TypeToken<ModelApiResponse>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: Get authentication scheme.
  Get the authentication scheme by user name or tenant name. The return value is   &#39;saml&#39; if the contact center has [Security Assertion Markup Language](https://en.wikipedia.org/wiki/Security_Assertion_Markup_Language)   (SAML) enabled; otherwise, the return value is &#39;basic&#39;.
  @param lookupData Data for scheme lookup. (required)
  @return ApiResponse&lt;ModelApiResponse&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body