export declare const duplex: <R, IE, OE, OutDone, InDone>(
  self: Channel.Channel<Chunk.Chunk<Uint8Array>, Chunk.Chunk<Uint8Array>, OE, NdjsonError | IE, OutDone, InDone, R>
) => Channel.Channel<Chunk.Chunk<unknown>, Chunk.Chunk<unknown>, NdjsonError | OE, IE, OutDone, InDone, R>

export declare const duplexSchema: any

export declare const pack: <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<Uint8Array>,
  Chunk.Chunk<unknown>,
  IE | NdjsonError,
  IE,
  Done,
  Done
>

export declare const packSchema: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<Chunk.Chunk<Uint8Array>, Chunk.Chunk<A>, any, IE, Done, Done, R>

export declare const unpack: <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<unknown>,
  Chunk.Chunk<Uint8Array>,
  NdjsonError | IE,
  IE,
  Done,
  Done
>

export declare const unpackSchema: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<Chunk.Chunk<A>, Chunk.Chunk<Uint8Array>, any, IE, Done, Done, R>

export declare class NdjsonError

export declare const NdjsonErrorTypeId: typeof NdjsonErrorTypeId

export type NdjsonErrorTypeId = typeof NdjsonErrorTypeId