export declare const duplex: {
  <IA, II, IR, OA, OI, OR>(options: {
    readonly inputSchema: Schema.Schema<IA, II, IR>
    readonly outputSchema: Schema.Schema<OA, OI, OR>
  }): <R, InErr, OutErr, OutDone, InDone>(
    self: Channel.Channel<Chunk.Chunk<OI>, Chunk.Chunk<II>, OutErr, ParseError | InErr, OutDone, InDone, R>
  ) => Channel.Channel<Chunk.Chunk<OA>, Chunk.Chunk<IA>, ParseError | OutErr, InErr, OutDone, InDone, R | IR | OR>
  <R, InErr, OutErr, OutDone, InDone, IA, II, IR, OA, OI, OR>(
    self: Channel.Channel<Chunk.Chunk<OI>, Chunk.Chunk<II>, OutErr, ParseError | InErr, OutDone, InDone, R>,
    options: { readonly inputSchema: Schema.Schema<IA, II, IR>; readonly outputSchema: Schema.Schema<OA, OI, OR> }
  ): Channel.Channel<Chunk.Chunk<OA>, Chunk.Chunk<IA>, ParseError | OutErr, InErr, OutDone, InDone, R | IR | OR>
}

export declare const duplexUnknown: {
  <IA, II, IR, OA, OI, OR>(options: {
    readonly inputSchema: Schema.Schema<IA, II, IR>
    readonly outputSchema: Schema.Schema<OA, OI, OR>
  }): <R, InErr, OutErr, OutDone, InDone>(
    self: Channel.Channel<Chunk.Chunk<unknown>, Chunk.Chunk<unknown>, OutErr, ParseError | InErr, OutDone, InDone, R>
  ) => Channel.Channel<Chunk.Chunk<OA>, Chunk.Chunk<IA>, ParseError | OutErr, InErr, OutDone, InDone, R | IR | OR>
  <R, InErr, OutErr, OutDone, InDone, IA, II, IR, OA, OI, OR>(
    self: Channel.Channel<Chunk.Chunk<unknown>, Chunk.Chunk<unknown>, OutErr, ParseError | InErr, OutDone, InDone, R>,
    options: { readonly inputSchema: Schema.Schema<IA, II, IR>; readonly outputSchema: Schema.Schema<OA, OI, OR> }
  ): Channel.Channel<Chunk.Chunk<OA>, Chunk.Chunk<IA>, ParseError | OutErr, InErr, OutDone, InDone, R | IR | OR>
}

export declare const decode: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<A>,
  Chunk.Chunk<I>,
  ParseError | IE,
  IE,
  Done,
  Done,
  R
>

export declare const decodeUnknown: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<A>,
  Chunk.Chunk<unknown>,
  ParseError | IE,
  IE,
  Done,
  Done,
  R
>

export declare const encode: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<I>,
  Chunk.Chunk<A>,
  IE | ParseError,
  IE,
  Done,
  Done,
  R
>

export declare const encodeUnknown: <A, I, R>(
  schema: Schema.Schema<A, I, R>
) => <IE = never, Done = unknown>() => Channel.Channel<
  Chunk.Chunk<unknown>,
  Chunk.Chunk<A>,
  IE | ParseError,
  IE,
  Done,
  Done,
  R
>