import { SpawnSyncOptions, SpawnSyncReturns } from 'child_process';
export type PackageManager = 'npm' | 'yarn' | 'pnpm' | 'bun';
export type CommandType = 'install' | 'run' | 'test' | 'view';
/**
 * Detects the package manager used in the current project.
 * Prioritizes npm_config_user_agent, then checks for lock files.
 */
export declare function detectPackageManager(): PackageManager;
/**
 * Runs a package manager command synchronously.
 * @param command The type of command to run ('install', 'run', 'test', 'view').
 * @param args Arguments for the command.
 * @param options Options for spawnSync.
 * @returns The result of spawnSync.
 */
export declare function runCommand(command: CommandType, args: string[], options?: SpawnSyncOptions): SpawnSyncReturns<string | Buffer>;
/**
 * Gets the package.json key for overriding dependencies based on the package manager.
 */
export declare function getOverrideKey(): 'resolutions' | 'overrides';