How to use the @dcloudio/uni-cli-shared/lib/cache.getJsonFileMap function in @dcloudio/uni-cli-shared

function analyzeUsingComponents () {
  if (!process.env.UNI_OPT_SUBPACKAGES) {
    return
  }
  const pageSet = getPageSet()
  const jsonFileMap = getJsonFileMap()

  // 生成所有组件引用关系
  for (let name of jsonFileMap.keys()) {
    const jsonObj = JSON.parse(jsonFileMap.get(name))
    const usingComponents = jsonObj.usingComponents
    if (!usingComponents || !pageSet.has(name)) {
      continue
    }
    // usingComponentsMap[name] = {}

    Object.keys(usingComponents).forEach(componentName => {
      const componentPath = usingComponents[componentName].slice(1)
      if (!usingComponentsMap[componentPath]) {
        usingComponentsMap[componentPath] = new Set()
      }
      usingComponentsMap[componentPath].add(name)