import type { ArrayBufferView, ByteView } from "multiformats";
export interface BlockEncoder<Code extends number, T> {
    readonly name: string;
    readonly code: Code;
    bytesToHash?(data: T): ByteView<unknown>;
    encode(data: T): ByteView<T>;
}
export interface AsyncBlockEncoder<Code extends number, T> {
    readonly name: string;
    readonly code: Code;
    bytesToHash?(data: T): Promise<ByteView<unknown>>;
    encode(data: T): PromiseLike<ByteView<T>>;
}
export interface BlockDecoder<Code extends number, T> {
    readonly code: Code;
    valueToHashBytes?(value: T): ByteView<unknown>;
    decode(bytes: ByteView<unknown>): T;
}
export interface AsyncBlockDecoder<Code extends number, T> {
    readonly code: Code;
    valueToHashBytes?(value: T): Promise<ByteView<unknown>>;
    decode(bytes: ByteView<unknown>): PromiseLike<T>;
}
export interface BlockCodec<Code extends number, E, D> extends BlockEncoder<Code, E>, BlockDecoder<Code, D> {
}
export interface AsyncBlockCodec<Code extends number, E, D> extends AsyncBlockEncoder<Code, E>, AsyncBlockDecoder<Code, D> {
}
export type { ArrayBufferView, ByteView };