import type { Expression, Note } from "../model/Symbol.js";
import type { TrackerBar } from "../systems/TrackerBar.js";
import type { NegotiatedEvent } from "../systems/ReproducingSystem.js";
import { Edition } from "../model/Edition.js";
/**
 * The symbol as a performance needs it: where it lies, and the
 * position the performing bar reads it on.
 *
 * Nothing where that bar reads nothing of it, which is the case a
 * transfer between systems leaves behind: a red `ForzandoOn` a
 * green version still inherits cannot be performed on a green
 * machine, and an edit has yet to say what took its place.
 * @category Systems and emulation
 */
export declare const negotiatedEventOf: (edition: Edition, symbol: Note | Expression, bar: TrackerBar) => NegotiatedEvent | null;