import type { Operator } from './index';
/**
 * The sequenceFunction will be called repeatedly with an incrementing numerical parameter, returning a Promise
 * that resolves with the same type as Input and is inserted into the stream.  The sequence operator
 * passes through all other values.  Because the sequenceFunction returns a Promise, it
 * can delay its response (using setTimeout) to emit values on a regular schedule, e.g., once a second.
 *
 * @param sequenceFunction
 */
export default function <Input>(sequenceFunction: (index: number) => Promise<Input>): Operator<Input, Input>;