interface Transformer Type Parameters 🔗 I = any 🔗 O = any Properties 🔗 flush: TransformStreamDefaultControllerCallback<O> 🔗 readableType: undefined 🔗 start: TransformStreamDefaultControllerCallback<O> 🔗 transform: TransformStreamDefaultControllerTransformCallback<I, O> 🔗 cancel: (reason: any) => Promise<void> 🔗 writableType: undefined