declare class ControlledScheduler

declare const scheduleTask: (task: Task, priority: number) => void

declare const shouldYield: (fiber: RuntimeFiber<unknown, unknown>) => number | false

declare const step: () => void

tasks: PriorityBuckets<Task>

deferred: boolean

declare class MixedScheduler { constructor(
    /**
     * @since 2.0.0
     */
    readonly maxNextTickBeforeTimer: number
  ) }

declare const starveInternal: (depth: number) => void

declare const starve: (depth?: number) => void

declare const shouldYield: (fiber: RuntimeFiber<unknown, unknown>) => number | false

declare const scheduleTask: (task: Task, priority: number) => void

running: boolean

tasks: PriorityBuckets<Task>

declare class SyncScheduler

declare const scheduleTask: (task: Task, priority: number) => void

declare const shouldYield: (fiber: RuntimeFiber<unknown, unknown>) => number | false

declare const flush: () => void

tasks: PriorityBuckets<Task>

deferred: boolean

declare const make: (scheduleTask: Scheduler["scheduleTask"], shouldYield?: Scheduler["shouldYield"]) => Scheduler

declare const makeBatched: (
  callback: (runBatch: () => void) => void,
  shouldYield?: Scheduler["shouldYield"]
) => Scheduler

declare const makeMatrix: (...record: Array<[number, Scheduler]>) => Scheduler

declare const timer: (ms: number, shouldYield?: Scheduler["shouldYield"]) => Scheduler

declare const timerBatched: (ms: number, shouldYield?: Scheduler["shouldYield"]) => Scheduler

export interface Scheduler {
  shouldYield(fiber: RuntimeFiber<unknown, unknown>): number | false
  scheduleTask(task: Task, priority: number): void
}

type Task = () => void

declare const defaultScheduler: Scheduler

declare const defaultShouldYield: (fiber: RuntimeFiber<unknown, unknown>) => number | false

declare class PriorityBuckets<T>

declare const scheduleTask: (task: T, priority: number) => void

buckets: Array<[number, Array<T>]>