import type { Command } from 'commander';
type Spinner = {
    start(text?: string): Spinner;
    succeed(text?: string): void;
    fail(text?: string): void;
    warn(text?: string): void;
    info(text?: string): void;
    stop(): void;
    text: string;
};
export type PortCommandContext = {
    defaultPort: number;
    createSpinner: (text: string) => Promise<Spinner>;
    findListeningPids: (port: number) => number[];
    killPidBestEffort: (pid: number, opts: {
        force: boolean;
    }) => void;
    sleep: (ms: number) => Promise<void>;
    log: (line: string) => void;
    error: (line: string) => void;
    exit: (code: number) => never;
};
export declare function createPortCommand(program: Command, ctx: PortCommandContext): void;
export {};