Optionalconnectionioredis-style connection options passed to every Queue/Worker
(e.g. { host, port } or { url }). Defaults to { host: '127.0.0.1', port: 6379 }.
OptionalclientA pre-built bullmq module (or a stand-in exposing Queue and Worker
constructors). When provided, connect() adopts it and does not
require('bullmq') — used for injecting mocks in tests.
Connection options for
BullMQStore.