import type { ModelSettings, SerializedHandoff, SerializedOutputType, SerializedTool, StreamEvent } from '@openai/agents-core';
export type JsonValue = null | string | number | boolean | JsonValue[] | {
    [k: string]: JsonValue;
};
export interface SerializedModelRequest {
    systemInstructions?: string;
    input: JsonValue;
    modelSettings: ModelSettings;
    tools: SerializedTool[];
    toolsExplicitlyProvided?: boolean;
    outputType: SerializedOutputType;
    handoffs: SerializedHandoff[];
    prompt?: JsonValue;
    previousResponseId?: string;
    conversationId?: string;
    tracing: JsonValue;
    overridePromptModel?: boolean;
}
export interface SerializedModelResponse {
    usage: JsonValue;
    output: JsonValue[];
    responseId?: string;
    providerData?: Record<string, JsonValue>;
}
export interface InvokeModelActivityInput {
    modelName: string;
    request: SerializedModelRequest;
}
export type SerializedStreamEvent = JsonValue;
export declare function toSerializedStreamEvent(event: StreamEvent): SerializedStreamEvent;
export declare function fromSerializedStreamEvent(event: SerializedStreamEvent): StreamEvent;
export interface InvokeModelStreamActivityInput {
    modelName: string;
    request: SerializedModelRequest;
    streamingTopic: string;
    /** Stream publisher batch flush interval, as a Duration string. */
    streamingBatchInterval?: string;
}