code: public Observable<Page<ApplicationSecurityGroupInner>> listAsync() {
          return listWithServiceResponseAsync()
              .map(new Func1<ServiceResponse<Page<ApplicationSecurityGroupInner>>, Page<ApplicationSecurityGroupInner>>() {
                  @Override
                  public Page<ApplicationSecurityGroupInner> call(ServiceResponse<Page<ApplicationSecurityGroupInner>> response) {
                      return response.body();
                  }
              });
      }
docs: Gets all application security groups in a subscription.
  
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the PagedList&lt;ApplicationSecurityGroupInner&gt; object