如何使用java rest api客户端在docusign中以编程方式添加公式选项卡以及添加规则？

ApiClient apiClient = new ApiClient();
apiClient.setBasePath("https://demo.docusign.net/restapi");
apiClient.addDefaultHeader("Authorization", "Bearer YOUR_API_KEY");

EnvelopeDefinition envelopeDefinition = new EnvelopeDefinition();
envelopeDefinition.setEmailSubject("Example subject");
envelopeDefinition.setEmailBlurb("Example blurb");

Document document = new Document();
document.setDocumentBase64(Base64.getEncoder().encodeToString(fileBytes));
document.setName("Example document");
document.setFileExtension("pdf");
document.setDocumentId("1");

FormulaTab formulaTab = new FormulaTab();
formulaTab.setDocumentId("1");
formulaTab.setRecipientId("1");
formulaTab.setTabLabel("Example tab");
formulaTab.setFormula("SUM([Text1],[Text2])");

Tabs tabs = new Tabs();
tabs.setFormulaTabs(Collections.singletonList(formulaTab));
document.setTabs(tabs);

envelopeDefinition.setDocuments(Collections.singletonList(document));

EnvelopesApi envelopesApi = new EnvelopesApi(apiClient);
EnvelopeSummary envelopeSummary = envelopesApi.createEnvelope("YOUR_ACCOUNT_ID", envelopeDefinition);