/**
 * Check if a variable is type of the given types.
 * Throw an error if it is not.
 * @param option
 * @param type
 * @param name
 */
export declare function assertType<T>(option: T, type: string | string[], name?: string): true | never;
/**
 * Check if a variable is type of the given types.
 * @param option
 * @param type
 */
export declare function isType<T>(option: T, type: string | string[]): boolean;
/**
 * Function that checks if an array values is of the given types.
 */
export declare function arrayIsTypeOf(arr: any[], types: string | string[]): boolean;