export declare const setPackageJsonField: (fieldName: string, value: string | number | boolean) => Promise<void>;
export declare const getPackageJsonField: (fieldName: string) => Promise<string>;
export declare const getPackageJsonFields: (...fieldNames: string[]) => Promise<string>;
export declare const setPackageJsonFields: (keyValuePairs: {
    key: string;
    value: string;
}[]) => Promise<void>;