import { PackageJson } from 'type-fest';
/**
 * Determines whether or not the node's value is an Array
 *
 * @param packageJsonData Valid JSON
 * @param nodeName Name of a node in the package.json file
 * @return True if the node is an array or is missing. False if it is not.
 */
export declare const isArray: (packageJsonData: PackageJson | any, nodeName: string) => boolean;
/**
 * Determines whether or not the node's value is a boolean
 *
 * @param packageJsonData Valid JSON
 * @param nodeName Name of a node in the package.json file
 * @return True if the node is a boolean or is missing. False if it is not.
 */
export declare const isBoolean: (packageJsonData: PackageJson | any, nodeName: string) => boolean;
/**
 * Determines whether or not the node's value is an object
 *
 * @param packageJsonData Valid JSON
 * @param nodeName Name of a node in the package.json file
 * @return True if the node is an object or is missing. False if it is not.
 */
export declare const isObject: (packageJsonData: PackageJson | any, nodeName: string) => boolean;
/**
 * Determines whether or not the node's value is a string
 *
 * @param packageJsonData Valid JSON
 * @param nodeName Name of a node in the package.json file
 * @return True if the node is a string or is missing. False if it is not.
 */
export declare const isString: (packageJsonData: PackageJson | any, nodeName: string) => boolean;