import { Ruleset, RulesetLoader } from "pico-framework";
export interface CachedRuleset {
    url: string;
    krl: string;
    hash: string;
    flushed: Date;
    rid: string;
    compiler: {
        version: string;
        warnings: any[];
    };
    ruleset: Ruleset;
}
export interface RulesetRegistryLoader {
    fetchKrl(url: string): Promise<string>;
    compileAndLoad(url: string, krl: string, hash: string): Promise<{
        ruleset: Ruleset;
        compiler: {
            version: string;
            warnings: any[];
        };
    }>;
    save(data: CachedRuleset): Promise<void>;
    attemptLoad(url: string): Promise<CachedRuleset | null>;
}
export declare class RulesetRegistry {
    private regLoader;
    onRulesetLoaded?: ((crs: CachedRuleset) => void) | undefined;
    private rulesetCache;
    load: (url: string) => Promise<CachedRuleset>;
    flush: (url: string) => Promise<CachedRuleset>;
    constructor(regLoader: RulesetRegistryLoader, onRulesetLoaded?: ((crs: CachedRuleset) => void) | undefined);
    loader: RulesetLoader;
    getCached(url: string): CachedRuleset | null;
    private setCachedRuleset;
    private loadBase;
    private flushBase;
}