code: public Boolean existsWithIdPost(FindRequest request) throws ApiException {
          ApiResponse<Boolean> resp = existsWithIdPostWithHttpInfo(request);
          return resp.getData();
      }
docs: Entity exists
  Find Managed Entity by primary Key within Partition(optional) and determine if it exists
  @param request Managed Entity Request Object (required)
  @return Boolean
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body