code: public Observable<FrontendIPConfigurationInner> getAsync(String resourceGroupName, String loadBalancerName, String frontendIPConfigurationName) {
          return getWithServiceResponseAsync(resourceGroupName, loadBalancerName, frontendIPConfigurationName).map(new Func1<ServiceResponse<FrontendIPConfigurationInner>, FrontendIPConfigurationInner>() {
              @Override
              public FrontendIPConfigurationInner call(ServiceResponse<FrontendIPConfigurationInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets load balancer frontend IP configuration.
  
  @param resourceGroupName The name of the resource group.
  @param loadBalancerName The name of the load balancer.
  @param frontendIPConfigurationName The name of the frontend IP configuration.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable to the FrontendIPConfigurationInner object