private func syncWithCloudKit(
  process: @escaping ProcessGet<SetEndpoints>
) {
  CKReferenceCache.requestFromCloudKitAndStore { getCache in
    do {
      let cache = try getCache()
      _process(cache: cache)
    }
    catch { process { throw error } }
  }

  func _process(cache: CKReferenceCache) {
    CKDatabase.private.request(recordType: SetEndpoint.self) { getRecords in
      do {
        let records = try getRecords()
        try _process(cache: cache, records: records)
      }
      catch { process { throw error } }
    }
  }

  func _process(cache: CKReferenceCache, records: [CKRecord]) throws {
    let setEndpoints = try records.map {
      try SetEndpoint(
        record: $0,
        exerciseTypes: cache.exerciseTypes,
        resistanceTypes: cache.resistanceTypes
      )
    }
    try setEndpoints.saveJSONToDrive()
    process {
      [setEndpoints = try SetEndpoint.makeDictionaryFromSavedJSON()]
      in setEndpoints
    }
  }
}