verbose.ts

async setup() {
  // It's very vervose...
  onSnapshot(docRefA, (ds) => {
    if (ds.exists()) {
      this.$patch({ docDataA: ds.data() })
    }
  })
  onSnapshot(docRefB, (ds) => {
    if (ds.exists()) {
      this.$patch({ docDataB: ds.data() })
    }
  })
  onSnapshot(docRefC, (ds) => {
    if (ds.exists()) {
      this.$patch({ docDataC: ds.data() })
    }
  })
}