code: public Request<EmailProvider> update(EmailProvider emailProvider) {
          Asserts.assertNotNull(emailProvider, "email provider");
  
          String url = baseUrl
                  .newBuilder()
                  .addPathSegments("api/v2/emails/provider")
                  .build()
                  .toString();
          CustomRequest<EmailProvider> request = new CustomRequest<>(this.client, url, "PATCH", new TypeReference<EmailProvider>() {
          });
          request.addHeader("Authorization", "Bearer " + apiToken);
          request.setBody(emailProvider);
          return request;
      }
docs: Update the existing Email Provider. A token with scope update:email_provider is needed.
  See https://auth0.com/docs/api/management/v2#!/Emails/patch_provider
  
  @param emailProvider the email provider data to set.
  @return a Request to execute.