ethers.js/utils/properties.d.ts

export declare function defineReadOnly(object: any, name: string, value: any): void;
export declare function setType(object: any, type: string): void;
export declare function isType(object: any, type: string): boolean;
export declare function resolveProperties(object: any): Promise<any>;
export declare function shallowCopy(object: any): any;
export declare function deepCopy(object: any, frozen?: boolean): any;
export declare function inheritable(parent: any): (child: any) => void;