export type Arg = string | number | null | undefined;
export type FlattenFuncArg = number | number[];
export declare function op(state: any): number;
export declare function plus(state: any): number;
export declare function _sum(state: any): number;
export declare function minus(state: any): number;
export declare function multiply(state: any): number;
export declare function divide(state: any): number;
export declare function intDivide(state: any): number;
export declare function power(state: any): number;
export declare function round(state: any): number;
export declare function sqrt(state: any): number;
export declare function cbrt(state: any): number;
export declare function abs(state: any): number;
declare const _default: any;
export default _default;