import type { TLinkElement, TLinkReference } from "../../types/response.js";
import type { ArgumentEngine, TArgumentEngineSnapshot } from "../argument-engine.js";
/**
 * Whether a referenced link is about an element of the argument its response
 * answers. True when the reference names a link of `response` and:
 *
 * - for a claim, the link binds a variable expression of that claim, at any
 *   version of the claim;
 * - for an expression, the link binds that expression, or the root of the
 *   premise that contains it.
 *
 * A reference to another argument, another version, or a premise that is not
 * a link is never about anything.
 *
 * @throws When `targetSnapshot` is not the argument and version `response`
 * answers.
 */
export declare function linkTargetsElement(reference: TLinkReference, response: ArgumentEngine, targetSnapshot: TArgumentEngineSnapshot, element: TLinkElement): boolean;
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