import type { TargetMetadata } from '../../../modules/pipeline/orchestrator/pipeline-context.js';
export interface ProviderRuntimeMetadata {
    requestId?: string;
    pipelineId?: string;
    routeName?: string;
    providerId?: string;
    providerKey?: string;
    runtimeKey?: string;
    providerType?: string;
    providerFamily?: string;
    providerProtocol?: string;
    modelId?: string;
    metadata?: Record<string, unknown>;
    target?: TargetMetadata;
    compatibilityProfile?: string;
    /**
     * Runtime metadata is a dynamic carrier for provider/request hints.
     * Keep an index signature so transport/provider code can attach extra fields
     * (e.g. streaming flags, client originator, counters) without fighting TS.
     */
    [key: string]: unknown;
}
declare const PROVIDER_RUNTIME_SYMBOL: unique symbol;
export declare function attachProviderRuntimeMetadata(payload: Record<string, unknown>, metadata: ProviderRuntimeMetadata): void;
export declare function extractProviderRuntimeMetadata(source: unknown): ProviderRuntimeMetadata | undefined;
export { PROVIDER_RUNTIME_SYMBOL };