/** Ephemeral Realtime session creation for browser/mobile clients. */
import type { AuthInput } from "./auth.js";
import { type RealtimeModel } from "./config.js";
import { type ClientSecretRequestOptions } from "./client-secret.js";
import type { RealtimeSessionTool, ToolRegistry } from "./tools.js";
export type ReasoningEffort = "none" | "minimal" | "low" | "medium" | "high";
export interface RealtimeSessionConfig {
    type: "realtime";
    model?: RealtimeModel;
    instructions?: string;
    output_modalities?: Array<"text" | "audio">;
    audio?: Record<string, unknown>;
    tools?: RealtimeSessionTool[];
    tool_choice?: "auto" | "none" | "required" | string;
    reasoning?: {
        effort?: ReasoningEffort;
        [key: string]: unknown;
    };
    [key: string]: unknown;
}
export interface RealtimeSessionServiceOptions extends ClientSecretRequestOptions {
    auth?: AuthInput;
    tools?: ToolRegistry | readonly RealtimeSessionTool[];
    /** Additional MCP/connectors or advanced definitions to compose with a registry. */
    sessionTools?: readonly RealtimeSessionTool[];
    defaultModel?: RealtimeModel;
    defaultInstructions?: string;
    safetyIdentifier?: string;
    timeoutMs?: number;
}
export interface MintOptions {
    model?: RealtimeModel;
    voice?: string;
    instructions?: string;
    reasoningEffort?: ReasoningEffort;
    session?: Partial<RealtimeSessionConfig>;
    signal?: AbortSignal;
}
export interface MintedSecret {
    value: string;
    expiresAt?: number;
    model: RealtimeModel;
}
export declare class RealtimeSessionService {
    private readonly options;
    constructor(options?: RealtimeSessionServiceOptions);
    buildSession(options?: MintOptions): RealtimeSessionConfig;
    mint(options?: MintOptions): Promise<MintedSecret>;
}
/** One-shot convenience helper. */
export declare function mintClientSecret(options?: MintOptions, serviceOptions?: RealtimeSessionServiceOptions): Promise<MintedSecret>;
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