code: public Observable<Void> beginCreateAsync(String resourceGroupName, String managedInstanceName, TdeCertificateInner parameters) {
          return beginCreateWithServiceResponseAsync(resourceGroupName, managedInstanceName, parameters).map(new Func1<ServiceResponse<Void>, Void>() {
              @Override
              public Void call(ServiceResponse<Void> response) {
                  return response.body();
              }
          });
      }
docs: Creates a TDE certificate for a given server.
  
  @param resourceGroupName The name of the resource group that contains the resource. You can obtain this value from the Azure Resource Manager API or the portal.
  @param managedInstanceName The name of the managed instance.
  @param parameters The requested TDE certificate to be created or updated.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceResponse} object if successful.