import type { ExtractDependencyType } from '@tinkoff/dippy';
import type { ENV_MANAGER_TOKEN } from '@tramvai/tokens-common';
import type { APP_INFO_TOKEN } from '@tramvai/tokens-core';
/**
 * nodejs sends "User-Agent: node" header
 * on the server by default. For logging purpose, we are
 * replacing "User-Agent" value with custom one, containing
 * both application name and version.
 *
 * @param appInfo
 * @param envManager
 */
export declare const transformUserAgent: ({ appInfo, envManager, }: {
    appInfo: ExtractDependencyType<typeof APP_INFO_TOKEN>;
    envManager: ExtractDependencyType<typeof ENV_MANAGER_TOKEN>;
}) => Record<string, string> | undefined;
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