/**
 * Get a property of a plain object
 * Throws an error in case the object is not a plain object or the
 * property is not defined on the object itself
 * @param {Object} object
 * @param {string} prop
 * @return {*} Returns the property value when safe
 */
declare function getSafeProperty(object: unknown, prop: string): unknown;
/**
 * Set a property on a plain object.
 * Throws an error in case the object is not a plain object or the
 * property would override an inherited property like .constructor or .toString
 * @param {Object} object
 * @param {string} prop
 * @param {*} value
 * @return {*} Returns the value
 */
declare function setSafeProperty(object: unknown, prop: string, value: unknown): unknown;
/**
 * Test whether a property is safe to use on an object or Array.
 * For example .toString and .constructor are not safe
 * @param {Object | Array} object
 * @param {string} prop
 * @return {boolean} Returns true when safe
 */
declare function isSafeProperty(object: unknown, prop: string): boolean;
/**
 * Validate whether a method is safe.
 * Throws an error when that's not the case.
 * @param {Object} object
 * @param {string} method
 * @return {function} Returns the method when valid
 */
declare function getSafeMethod(object: unknown, method: string): unknown;
/**
 * Check whether a method is safe.
 * Throws an error when that's not the case (for example for `constructor`).
 * @param {Object} object
 * @param {string} method
 * @return {boolean} Returns true when safe, false otherwise
 */
declare function isSafeMethod(object: unknown, method: string): boolean;
declare function isPlainObject(object: unknown): boolean;
export { getSafeProperty };
export { setSafeProperty };
export { isSafeProperty };
export { getSafeMethod };
export { isSafeMethod };
export { isPlainObject };
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