import { CrochetTrace, TraceEvent, TraceTag } from "../../vm";
declare type Subscriber = (_: TraceEvent) => void;
declare type Filter = Record<TraceTag, boolean>;
export declare class Transcript {
    readonly trace: CrochetTrace;
    private subscribers;
    private filter;
    constructor(trace: CrochetTrace);
    on_event: (event: TraceEvent) => void;
    set_filter(filter: Partial<Filter>): void;
    subscribe(x: Subscriber): void;
}
export {};