docs: public ApiResponse<CertificateEnvelope> getWhitelistCertificateWithHttpInfo(String dtid) throws ApiException {
          com.squareup.okhttp.Call call = getWhitelistCertificateValidateBeforeCall(dtid, null, null);
          Type localVarReturnType = new TypeToken<CertificateEnvelope>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }