import { ArgType } from '../types';
export declare const isArray: (item: unknown) => item is unknown[];
export declare const isNumber: (item: unknown) => item is number;
export declare const isString: (item: unknown) => item is string;
export declare const isBoolean: (item: unknown) => item is boolean;
export declare const isNumberish: (item: unknown) => item is string | number;
export declare const isEthAddress: (item: unknown) => item is `0x${string}`;
export declare const isArgType: (item: unknown) => item is ArgType;
export declare const isNumberString: (item: unknown) => boolean;
export declare const isLengthOf: (item: unknown, length: number) => boolean;