import type { CachedTable } from "@snort/shared";
import type { CachedMetadata, UsersFollows } from "./cache";
import type { CacheRelay } from "./cache-relay";
import { type Optimizer } from "./query-optimizer";
import type { NostrSystemEvents, SystemConfig } from "./system";
import { EventEmitter } from "eventemitter3";
export declare abstract class SystemBase extends EventEmitter<NostrSystemEvents> {
    #private;
    get config(): SystemConfig;
    constructor(props: Partial<SystemConfig>);
    /**
     * Storage class for user profiles
     */
    get profileCache(): CachedTable<CachedMetadata>;
    /**
     * Optimizer instance, contains optimized functions for processing data
     */
    get optimizer(): Optimizer;
    get userFollowsCache(): CachedTable<UsersFollows>;
    get cacheRelay(): CacheRelay | undefined;
    /**
     * Check event signatures (recommended)
     */
    get checkSigs(): boolean;
    set checkSigs(v: boolean);
}
//# sourceMappingURL=system-base.d.ts.map