import { ProgressEvent, BasicPackageOptions } from '../types';
export type InstallOptions = BasicPackageOptions & {
    onProgress?: (event: ProgressEvent) => void;
    /**
     * Absolute path to the lock file. Derived from the config file path via getLockfilePath().
     */
    lockfilePath: string;
    /**
     * When true, read the lock file and use it to pin package versions.
     * Fails if no lock file is found. Does not update the lock file.
     * When false (default), resolve normally and write/update the lock file.
     */
    frozenLockfile?: boolean;
};
export type InstallResult = {
    added: number;
    modified: number;
    deleted: number;
    skipped: number;
};
export declare function actionInstall(options: InstallOptions): Promise<InstallResult>;
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