import type { FramePerfSample } from "./frame-perf.js";
export type FramePerf = FramePerfSample;
export type ComponentPerf = Readonly<{
    name: string;
    id?: string;
    phase: "source-read" | "measure" | "layout" | "render" | "cache-hit" | "cache-miss" | "scroll" | "parse";
    durationMs: number;
    visibleStart?: number;
    visibleEnd?: number;
    overscanStart?: number;
    overscanEnd?: number;
    itemCount?: number;
    renderedCount?: number;
    cacheHit?: number;
    cacheMiss?: number;
    width?: number;
    version?: string | number;
    reason?: string;
}>;
export type TuiPerfEvent = Readonly<{
    type: string;
    ts?: number;
    component?: string;
    id?: string;
    data?: Record<string, unknown>;
}>;
export type TuiPerfSink = Readonly<{
    onFramePerf: (sample: FramePerfSample) => void;
    onComponentPerf?: (sample: ComponentPerf) => void;
    onEvent?: (event: TuiPerfEvent) => void;
    dispose?: () => void;
}>;
export type TuiPerfJsonlWriter = Readonly<{
    appendFileSync?: (path: string, data: string) => void;
}>;
export type CreateJsonlPerfSinkOptions = Readonly<{
    file?: string;
    fileWriter?: TuiPerfJsonlWriter | null;
    write?: (line: string) => void;
    sampleRate?: number;
    includeComponents?: boolean;
    includeEvents?: boolean;
}>;
export type InstallTuiPerfOptions = Readonly<{
    enabled?: boolean;
    sink?: TuiPerfSink | null;
    debugOverlay?: boolean;
}>;
type InstalledTuiPerf = Readonly<{
    enabled: boolean;
    sink: TuiPerfSink | null;
}>;
export declare function createJsonlPerfSink(options?: CreateJsonlPerfSinkOptions): TuiPerfSink;
export declare function installTuiPerf(options?: InstallTuiPerfOptions): () => void;
export declare function getInstalledTuiPerf(): InstalledTuiPerf;
export {};