code: public CommandPropertiesInner command(String groupName, String serviceName, String projectName, String taskName, CommandPropertiesInner parameters) {
          return commandWithServiceResponseAsync(groupName, serviceName, projectName, taskName, parameters).toBlocking().single().body();
      }
docs: Execute a command on a task.
  The tasks resource is a nested, proxy-only resource representing work performed by a DMS instance. This method executes a command on a running task.
  
  @param groupName Name of the resource group
  @param serviceName Name of the service
  @param projectName Name of the project
  @param taskName Name of the Task
  @param parameters Command to execute
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws ApiErrorException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent
  @return the CommandPropertiesInner object if successful.