goBack
Perform an asynchronous action to go back to previous selection from current step. step must be a positive value. If step is larger than the number of steps that have been taken, e.g. goBack is called with step set to 9 at the third step, it goes back to the first step.
Return
The Cancellable operation.
Parameters
The number of step to go back. Default to 1.
The StructuredSearchCallback invoked when the going back has been finished either successfully or with an error.
Perform a synchronous action to go back to previous selection from current step. step must be a positive value. If step is larger than the number of steps that have been taken, e.g. goBack is called with step set to 9 at the third step, it goes back to the first step.
Return
The Result contains a StructuredSearchResponse if the call succeeds, or a StructuredSearchFailure if it fails.
Parameters
The number of step to go back. Default to 1.