import VoiceStep from './voice';
type SystemInstructionMode = 'append' | 'replace' | 'off';
type ToolResponseMode = 'sync' | 'async' | 'none';
interface Tool {
    name: string;
    description: string;
    parameters: string | Record<string, unknown>;
    exitId?: string;
    timeout_seconds?: number | string | null;
    response_mode?: ToolResponseMode | string | null;
}
interface AgentServiceConfig {
    provider: string;
    model: string;
    api_key?: string;
    options?: Record<string, unknown>;
}
interface INPUT {
    system_instruction_mode: SystemInstructionMode;
    system_instruction: string;
    developer_messages_mode: 'append' | 'replace';
    developer_messages: Array<string | {
        message?: string;
    }>;
    tools_update_mode: 'append' | 'replace';
    tools: Tool[];
    realtime_unsupported: boolean;
    custom_config_enabled: boolean;
    mode: string;
    stt: Partial<AgentServiceConfig>;
    llm: Partial<AgentServiceConfig>;
    tts: Partial<AgentServiceConfig>;
    realtime: Partial<AgentServiceConfig>;
}
export default class UpdateVoiceAgent extends VoiceStep<Partial<INPUT>> {
    runStep(): Promise<void>;
    exitToThread(): Promise<void>;
    private findExitByLabel;
    private normalizeMessages;
    private buildTools;
    private buildOptionalServiceOverride;
    private parseAgentServiceOptions;
    private isStepFlagEnabled;
}
export {};