export type TtsAudioPayload = {
    data: string;
    contentType: string;
};
export type SseEvent = {
    type: 'start';
    chatId?: string;
    messageId?: string;
    data?: unknown;
} | {
    type: 'token';
    data: string;
} | {
    type: 'sourceDocuments';
    data: unknown[];
} | {
    type: 'artifacts';
    data: unknown[];
} | {
    type: 'usedTools';
    data: unknown[];
} | {
    type: 'calledTools';
    data: unknown[];
} | {
    type: 'fileAnnotations';
    data: unknown[];
} | {
    type: 'agentReasoning';
    data: unknown;
} | {
    type: 'agentFlowEvent';
    data: string;
} | {
    type: 'agentFlowExecutedData';
    data: unknown;
} | {
    type: 'metadata';
    data: unknown;
} | {
    type: 'action';
    data: unknown;
} | {
    type: 'error';
    data: unknown;
} | {
    type: 'abort';
    data?: unknown;
} | {
    type: 'ttsAudio';
    data: TtsAudioPayload;
} | {
    type: 'end';
    data: unknown;
}
/**
 * A frame in a protocol this parser does not own — currently AG-UI, which Core streams
 * when the caller asks for it via `streamProtocol`. The parser recognises these
 * structurally (see `isPassthroughFrame`) and hands them over verbatim on `onEvent`
 * rather than guessing at token text, which would drop every non-text frame.
 */
 | {
    type: 'aguiFrame';
    data: unknown;
} | {
    type: string;
    data: unknown;
};
/** Set of event names treated as token-bearing on the wire. */
export declare const TOKEN_EVENT_NAMES: Set<string>;
/** Set of event names that terminate the stream successfully. */
export declare const END_EVENT_NAMES: Set<string>;
export type StreamCallbacks = {
    onStart?: (e: {
        chatId?: string;
        messageId?: string;
        data?: unknown;
    }) => void;
    onToken?: (token: string) => void;
    onSourceDocuments?: (docs: unknown[]) => void;
    onArtifacts?: (artifacts: unknown[]) => void;
    onUsedTools?: (tools: unknown[]) => void;
    onCalledTools?: (calls: unknown[]) => void;
    onFileAnnotations?: (files: unknown[]) => void;
    onAgentReasoning?: (reasoning: unknown) => void;
    onAgentFlowEvent?: (eventName: string) => void;
    onAgentFlowExecutedData?: (data: unknown) => void;
    onMetadata?: (data: unknown) => void;
    onAction?: (action: unknown) => void;
    onTtsAudio?: (audio: TtsAudioPayload) => void;
    onDone?: (final: {
        chatId?: string;
        messageId?: string;
    }) => void;
    onError?: (err: import('../errors/toruk-sdk-error').TorukSdkError) => void;
    onEvent?: (event: SseEvent) => void;
};