[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [CustomEmitter](./node-tracker.customemitter.md) ## CustomEmitter type Signature: ```typescript type CustomEmitter = { /* Function returning custom Emitter or Emitter[] to be used. If set, other options are irrelevant */ customEmitter: () => Emitter | Array; }; ```