import type { RunTokenUsage } from '../run-record';
export declare function objectRecord(value: unknown): Record<string, unknown> | null;
export declare function stringField(record: Record<string, unknown>, key: string): string | null;
export declare function numberField(record: Record<string, unknown>, key: string): number | null;
export declare function tokenUsageField(value: unknown): RunTokenUsage | null;
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