export declare const done: FiberStatus

export declare const running: (runtimeFlags: RuntimeFlags.RuntimeFlags) => FiberStatus

export declare const suspended: (runtimeFlags: RuntimeFlags.RuntimeFlags, blockingOn: FiberId.FiberId) => FiberStatus

export interface Done extends Equal.Equal {
  readonly _tag: "Done"
  readonly [FiberStatusTypeId]: FiberStatusTypeId
}

export type FiberStatus = Done | Running | Suspended

export interface Running extends Equal.Equal {
  readonly _tag: "Running"
  readonly [FiberStatusTypeId]: FiberStatusTypeId
  readonly runtimeFlags: RuntimeFlags.RuntimeFlags
}

export interface Suspended extends Equal.Equal {
  readonly _tag: "Suspended"
  readonly [FiberStatusTypeId]: FiberStatusTypeId
  readonly runtimeFlags: RuntimeFlags.RuntimeFlags
  readonly blockingOn: FiberId.FiberId
}

export declare const isDone: (self: FiberStatus) => self is Done

export declare const isFiberStatus: (u: unknown) => u is FiberStatus

export declare const isRunning: (self: FiberStatus) => self is Running

export declare const isSuspended: (self: FiberStatus) => self is Suspended

export declare const FiberStatusTypeId: typeof FiberStatusTypeId

export type FiberStatusTypeId = typeof FiberStatusTypeId