export declare const isObject: (obj: unknown) => obj is Record<string, unknown>;
export declare const isInteger: (obj: unknown) => boolean;
export declare const isString: (obj: unknown) => boolean;
export declare const isBlob: (obj: unknown) => boolean;
export declare const isFile: (obj: unknown) => boolean;
export declare const isNumber: (value: unknown) => boolean;
export declare const isBoolean: (value: unknown) => boolean;