How to use the ember-concurrency.didCancel function in ember-concurrency

}).catch((e) => {
        if (!didCancel(e)) {
          // re-throw the non-cancelation error
          throw e;
        }
      });
    }

}).catch((error) => {
                        // ignore cancelled tasks and throw unrecognized errors
                        if (!didCancel(error)) {
                            throw error;
                        }
                    });
                }

}).catch(e => {
      if (!didCancel(e)) {
        throw e;
      }
    });
  }

function _ignoreCancellationErrors(e) {
  const isTaskCancelationError = didCancel(e);
  if (!isTaskCancelationError) {
    return Ember.RSVP.reject(e);
  }
}

.catch((e) => {
            if (!didCancel(e)) {
              reject(e);
            }
          });
      });

.catch(e => {
        if (!didCancel(e)) {
          throw e;
        }
      });
  }