export interface ProfilerFrame {
    /** A function instance name. */
    readonly name: string;
    /** Index in the trace.resources array. */
    readonly resourceId?: number;
    /** 1-based index of the line. */
    readonly line?: number;
    /** 1-based index of the column. */
    readonly column?: number;
}
export interface ProfilerStack {
    /** Index in the trace.stacks array. */
    readonly parentId?: number;
    /** Index in the trace.frames array. */
    readonly frameId: number;
}
export interface ProfilerSample {
    /** High resolution time relative to the profiling session's time origin. */
    readonly timestamp: number;
    /** Index in the trace.stacks array. */
    readonly stackId?: number;
}
export type ProfilerResource = string;
export interface ProfilerTrace {
    /** An array of profiler resources. */
    readonly resources: ProfilerResource[];
    /** An array of profiler frames. */
    readonly frames: ProfilerFrame[];
    /** An array of profiler stacks. */
    readonly stacks: ProfilerStack[];
    /** An array of profiler samples. */
    readonly samples: ProfilerSample[];
}
export interface ProfilerInitOptions {
    /** Sample interval in ms. */
    readonly sampleInterval: number;
    /** Max buffer size in number of samples. */
    readonly maxBufferSize: number;
}
export interface Profiler extends EventTarget {
    /** Sample interval in ms. */
    readonly sampleInterval: number;
    /** True if profiler is stopped. */
    readonly stopped: boolean;
    new (options: ProfilerInitOptions): Profiler;
    stop(): Promise<ProfilerTrace>;
    addEventListener<K extends keyof ProfilerEventMap>(type: K, listener: (this: typeof globalThis, ev: ProfilerEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
    addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
    removeEventListener<K extends keyof ProfilerEventMap>(type: K, listener: (this: typeof globalThis, ev: ProfilerEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
    removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
}
interface ProfilerEventMap {
    samplebufferfull: SampleBufferFullEvent;
}
export interface SampleBufferFullEvent extends Event {
    readonly target: Profiler;
}
export {};