import type { ContentBlock, ConverseStreamOutput } from '@aws-sdk/client-bedrock-runtime';
type Json = null | boolean | number | string | Json[];
type RecordValue = Record<string, unknown>;
/** Encodes owned SDK JSON and bytes without colliding with native JSON tags. @internal */
export declare function encodeBedrockNative(value: unknown, omitUndefined?: boolean): Json;
/** Decodes strict persisted native values into fresh plain objects and Uint8Arrays. @internal */
export declare function decodeBedrockNative(value: unknown): unknown;
interface CapturedBlock {
    readonly value: RecordValue;
    readonly input: string;
    readonly closed: boolean;
    readonly usable: boolean;
}
/** Immutable indexed stream capture, including unsupported opaque events. @internal */
export interface BedrockCapture {
    readonly blocks: Readonly<Record<number, CapturedBlock>>;
    readonly messageStopped: boolean;
    readonly usable: boolean;
    readonly events: readonly unknown[];
}
/** Creates an empty indexed stream capture. @internal */
export declare function createBedrockCapture(): BedrockCapture;
/** Adds one SDK stream event while retaining native block order and opaque data. @internal */
export declare function captureBedrockEvent(state: BedrockCapture, event: ConverseStreamOutput): BedrockCapture;
/** Returns a fresh fully closed native block for canonical provenance. @internal */
export declare function readBedrockCaptureBlock(state: BedrockCapture, index: number): ContentBlock | undefined;
/** Returns complete ordered content only after normal EOF, messageStop and every block STOP. @internal */
export declare function readBedrockCaptureContent(state: BedrockCapture, normalEOF?: boolean): ContentBlock[] | undefined;
export {};