code: public IntegrationAccountInner update(String resourceGroupName, String integrationAccountName, IntegrationAccountInner integrationAccount) {
          return updateWithServiceResponseAsync(resourceGroupName, integrationAccountName, integrationAccount).toBlocking().single().body();
      }
docs: Updates an integration account.
  
  @param resourceGroupName The resource group name.
  @param integrationAccountName The integration account name.
  @param integrationAccount The integration account.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the IntegrationAccountInner object if successful.