import type { ExecutionDetailsStream, StepStreamOptions } from "../../interfaces.ts";
import type { Step } from "../../step.ts";
import type { LayerPlan } from "../LayerPlan.ts";
export declare function withGlobalLayerPlan<T, TThis = any, TArgs extends [...args: any[]] = [...args: any[]]>(layerPlan: LayerPlan, polymorphicPaths: ReadonlySet<string> | null, planningPath: string | null, stepStreamOptions: StepStreamOptions | true | null, callback: (this: TThis, ...args: TArgs) => T, callbackThis?: TThis, ...callbackArgs: TArgs): T;
export declare function currentLayerPlan(): LayerPlan;
export declare function currentPolymorphicPaths(): ReadonlySet<string> | null;
/** UNUSED */
export declare function currentPlanningPath(): string | undefined;
/**
 * Step - stream details.
 * true - Not a stream, but it is a subscription.
 * null - neither stream nor subscription
 *
 * @experimental
 */
export declare function currentFieldStreamDetails(): Step<ExecutionDetailsStream | null> | true | null;
export declare function isUnaryStep($step: Step): boolean;
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