# BrokersFunction

**Kind:** Type

**Source:** [`packages/microservices/external/kafka.interface.ts`](https://github.com/nestjs/nest/blob/master/packages/microservices/external/kafka.interface.ts#L27)

**Part of:** [Microservices](subsystem-packages-microservices)

## Definition

```ts
() => string[] | Promise<string[]>
```