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

export interface Redactable {
  readonly [symbolRedactable]: (fiberRefs: FiberRefs.FiberRefs) => unknown
}

declare const isRedactable: (u: unknown) => u is Redactable

declare const redact: (u: unknown) => unknown

declare const symbolRedactable: unique symbol

declare const withRedactableContext: <A>(context: FiberRefs.FiberRefs, f: () => A) => A

declare const NodeInspectSymbol: unique symbol

type NodeInspectSymbol = typeof NodeInspectSymbol

declare const BaseProto: Inspectable

declare class Class

declare const toJSON: () => unknown

declare const [NodeInspectSymbol]: () => unknown

declare const toString: () => string

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

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

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

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