export declare function assertArrayLike(name: string, mixed: any): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertMinLength(name: string, mixed: any, min: number): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertMinLengthHandler(min: number): (name: string, mixed: any) => ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertMaxLength(name: string, mixed: any, max: number): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertMaxLengthHandler(max: number): (name: string, mixed: any) => ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertLength(name: string, mixed: any, args: { min?: number; max?: number; }): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertLengthHandler(args: { min?: number; max?: number; }): (name: string, mixed: any) => ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertNonEmpty(name: string, mixed: any): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertContains(name: string, mixed: any, x: any): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertContainsHandler(x: any): (name: string, mixed: any) => ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never; export declare function assertNoDuplicate(name: string, mixed: any): ({ [index: number]: any; length: number; indexOf: (item: any) => number; }) | never;