How to use the popmotion.detectFlow function in popmotion

export const trackPosition = (element, callbacks) => {
    const flow = detectFlow(element);

    if (!hasInitialised) {
        init();
    }

    for (let key in callbacks) {
        if (callbacks.hasOwnProperty(key)) {
            flow[key] = callbacks[key];
        }
    }

    flow.onScreenTrackId = elementsToCheck.push(flow);
};

childWillAppear(node, onComplete) {
    if (this.props.onMount) {
      this.props.onMount(node);
    }

    if (this.props.enterOnMount) {
      if (this.props.mountValues) {
        const nodeFlow = detectFlow(node);

        nodeFlow.set({
          values: this.props.mountValues
        });
      }

      this.childWillEnter(node, onComplete);
    } else {
      onComplete();
    }
  }

startAction(node, action, onComplete) {
    const nodeFlow = detectFlow(node);
    const connectedAction = nodeFlow.connect(action);
    connectedAction.onComplete = onComplete;
    connectedAction.start();
  }

componentDidMount() {
    this.flow = detectFlow(this.getNode());
    this.setValues(this.props.values);

    if (this.props.actions) {
      this.props.actions.forEach((action) => this.startAction(action));
    }
  }

export const stopTracking = (element) => {
    const flow = detectFlow(element);
    delete elementsToCheck[flow.onScreenTrackId];
};

componentDidMount() {
    this.flow = detectFlow(findDOMNode(this));
    this.setValues(this.props.currentState);
  }