import type Database from 'better-sqlite3';
export interface PortRange {
    readonly min: number;
    readonly max: number;
}
export declare function isPortAvailable(port: number): Promise<boolean>;
export declare function findAvailablePort(range?: PortRange): Promise<number>;
export declare function allocatePort(db: Database.Database, projectId: string, taskId: string, range?: PortRange): Promise<number>;
export declare function releasePort(db: Database.Database, port: number): void;
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