@types/from2

ctor: {
    (opts?: Options): From2Ctor<ReadInput>;
    (opts: any): From2Ctor<ReadObjectInput>;
};

from2: typeof from2;

obj: {
    (read: ReadObjectInput): Stream;
    (opts: any, read: ReadObjectInput): Stream;
};

type Chunk = string | Buffer | Uint8Array | null;

type From2Ctor<R extends ReadInput | ReadObjectInput> = new (read: R) => Stream;

type NextCallback = (err: any | undefined, chunk: Chunk) => void;

type NextObjectCallback = (err: any | undefined, chunk: any) => void;

type ObjectModeOptions = { objectMode: true } & stream.ReadableOptions;

type Options = { objectMode?: false | undefined } & stream.ReadableOptions;

type ReadCallback<N extends NextCallback | NextObjectCallback> = (
    size: number,
    next: N
) => void;

type ReadInput = ReadCallback<NextCallback> | Chunk[];

type ReadObjectInput = ReadCallback<NextObjectCallback> | any[];