code: @RequestMapping(value = "branches/{branchId}/template/connect", method = RequestMethod.POST)
      public Branch connectTemplateInstance(@PathVariable ID branchId, @RequestBody BranchTemplateInstanceConnectRequest request) {
          return branchTemplateService.connectTemplateInstance(branchId, request);
      }
docs: Tries to connect an existing branch to a template
  
  @param branchId Branch to connect