import { RetryBudget } from "./budget.js";
import { OrderingTokenSource } from "./ordering.js";
import type { NormalizedEntry } from "./router-entry.js";
import type { Modality, RetryBudgetConfig, RouterHealthStore } from "./types.js";
export declare function validateAdaptiveConcurrency(entry: NormalizedEntry): void;
export declare const VALID_MODALITIES: Set<Modality>;
export declare const MAX_HEALTH_IDENTITY_LENGTH = 256;
export declare function validateHealthIdentity(value: string, name: string): void;
export declare function validateEntryConfiguration(entry: NormalizedEntry): void;
export declare function admissionSignature(entry: NormalizedEntry): string;
export declare function validateSharedAdmission(entries: NormalizedEntry[]): void;
export declare function resolveHealthNamespace(logicalId: string, namespace: string | undefined): string;
export declare function resolveSharedHealthNamespace(logicalId: string, namespace: string | undefined): string;
export declare function createOrderingTokenSource(): OrderingTokenSource;
export declare const orderingSources: WeakMap<RouterHealthStore, OrderingTokenSource>;
export declare function orderingTokenSourceFor(healthStore: RouterHealthStore): OrderingTokenSource;
export declare function isSignalAborted(signal: AbortSignal | undefined): boolean;
export declare function throwIfAborted(signal: AbortSignal | undefined): void;
export declare function createRetryBudget(config: boolean | RetryBudgetConfig | undefined): RetryBudget | undefined;