code: public Observable<RunCommandDocumentInner> getAsync(String location, String commandId) {
          return getWithServiceResponseAsync(location, commandId).map(new Func1<ServiceResponse<RunCommandDocumentInner>, RunCommandDocumentInner>() {
              @Override
              public RunCommandDocumentInner call(ServiceResponse<RunCommandDocumentInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets specific run command for a subscription in a location.
  
  @param location The location upon which run commands is queried.
  @param commandId The command id.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the RunCommandDocumentInner object