import { type PipelineBus } from "./pipeline-bus.js";
import { type MetricsExporter, type ObservabilityLayer } from "./observability.js";
export interface ObservabilityDims {
    readonly provider: string;
    readonly model: string;
    readonly region: string;
    readonly layer?: ObservabilityLayer;
}
export interface ObservabilityObserverDeps {
    readonly bus: PipelineBus;
    readonly exporter: MetricsExporter;
    readonly sessionId: string;
    readonly dims: ObservabilityDims;
    readonly getContextId: () => string;
}
export declare class ObservabilityObserver {
    private readonly deps;
    private readonly boundaryTimes;
    private readonly stageDims;
    private readonly agentStartedEmitted;
    private readonly unsubscribes;
    constructor(deps: ObservabilityObserverDeps);
    wire(disposers?: Array<() => void>): void;
    dispose(): void;
    private speechId;
    private onVadSpeechStarted;
    private onVadSpeechEnded;
    private onTurnComplete;
    private onTtsAudio;
    private onTtsEnd;
    private onInterruptDetected;
    private emitBoundary;
    private mergeStageDims;
    private dimsFor;
}
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