export interface Inspectable {
  toString(): string
  toJSON(): unknown
  [NodeInspectSymbol](): unknown
}

export declare const NodeInspectSymbol: typeof NodeInspectSymbol

export type NodeInspectSymbol = typeof NodeInspectSymbol

export declare const BaseProto: Inspectable

export declare class Class

abstract toJSON(): unknown

;[NodeInspectSymbol]()

toString()

export declare const format: (x: unknown) => string

export declare const stringifyCircular: (obj: unknown, whitespace?: number | string | undefined) => string

export declare const toJSON: (x: unknown) => unknown

export declare const toStringUnknown: (u: unknown, whitespace?: number | string | undefined) => string