code: public Observable<ExpressRouteCrossConnectionsRoutesTableSummaryListResultInner> listRoutesTableSummaryAsync(String resourceGroupName, String crossConnectionName, String peeringName, String devicePath) {
          return listRoutesTableSummaryWithServiceResponseAsync(resourceGroupName, crossConnectionName, peeringName, devicePath).map(new Func1<ServiceResponse<ExpressRouteCrossConnectionsRoutesTableSummaryListResultInner>, ExpressRouteCrossConnectionsRoutesTableSummaryListResultInner>() {
              @Override
              public ExpressRouteCrossConnectionsRoutesTableSummaryListResultInner call(ServiceResponse<ExpressRouteCrossConnectionsRoutesTableSummaryListResultInner> response) {
                  return response.body();
              }
          });
      }
docs: Gets the route table summary associated with the express route cross connection in a resource group.
  
  @param resourceGroupName The name of the resource group.
  @param crossConnectionName The name of the ExpressRouteCrossConnection.
  @param peeringName The name of the peering.
  @param devicePath The path of the device.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the observable for the request