import type { FASTIFY_RESPONSE, EARLY_HINTS_MANAGER_TOKEN } from '@tramvai/tokens-server-private';
import type { RESOURCES_REGISTRY } from '@tramvai/tokens-render';
import type { ExtractDependencyType } from '@tinkoff/dippy';
import type { EARLY_HINTS_ENABLED_TOKEN } from '@tramvai/tokens-server';
type EarlyHintsInterface = typeof EARLY_HINTS_MANAGER_TOKEN;
type Response = typeof FASTIFY_RESPONSE;
type ResourcesRegistry = typeof RESOURCES_REGISTRY;
type EarlyHintsEnabled = ExtractDependencyType<typeof EARLY_HINTS_ENABLED_TOKEN>;
interface ConstructorPayload {
    response: Response;
    resourcesRegistry: ResourcesRegistry;
    earlyHintsEnabled: EarlyHintsEnabled;
}
export declare class EarlyHintsManager implements EarlyHintsInterface {
    private sentHints;
    private readonly response;
    private readonly resourcesRegistry;
    private readonly earlyHintsEnabled;
    constructor(payload: ConstructorPayload);
    flushHints(): Promise<void>;
    private getHints;
    private writeToSocket;
    private getHttpMessage;
    private getAsAttribute;
    private getCdnHintForResource;
    private doesHintUniq;
}
export {};
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