import { type TelemetryRecord } from "./types.js";
/**
 * Append a single telemetry record as one JSON line.
 *
 * Telemetry MUST NEVER throw to the caller — an audit must not fail because a
 * log line could not be written. We swallow both I/O errors (expected, e.g.
 * read-only filesystem, path clash) and schema errors (a programmer bug where
 * an internal caller passed the wrong shape). Schema bugs log a single warning
 * to stderr so they remain discoverable.
 */
export declare function appendTelemetryRecord(path: string, record: TelemetryRecord): Promise<void>;
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