/**
 * src/core/records.ts — pure JSONL/message record helpers. No fs, no @earendil-works/*.
 */
import type { AssistantLikeMessage, JsonEvent } from "./types.js";
/** Type guard for plain record values. */
export declare function isRecord(value: unknown): value is Record<string, unknown>;
/** Extract joined text content from an assistant-like message. */
export declare function textFromMessage(message: AssistantLikeMessage | undefined): string;
/** Parse a single JSONL line into a JsonEvent, or undefined on failure. */
export declare function parseJsonLine(line: string): JsonEvent | undefined;