export declare const VERCEL_PROTECTION_BYPASS_HEADER = "x-vercel-protection-bypass";
export declare function resolveProtectionBypass(env?: NodeJS.ProcessEnv): string | undefined;
export declare function requireProtectionBypass(env?: NodeJS.ProcessEnv): string;
export declare function resolvePreviewBaseUrl(env?: NodeJS.ProcessEnv): string | undefined;
export declare function requirePreviewBaseUrl(env?: NodeJS.ProcessEnv): string;
/** CI / repository_dispatch: DEPLOYMENT_URL, then SMOKE_TEST_BASE_URL, then PREVIEW_SITE_URL. */
export declare function resolveDeploymentBaseUrl(env?: NodeJS.ProcessEnv): string | undefined;
export declare function requireDeploymentBaseUrl(env?: NodeJS.ProcessEnv): string;
export declare function resolveSitemapProdUrl(env?: NodeJS.ProcessEnv): string | undefined;
export declare function requireSitemapProdUrl(env?: NodeJS.ProcessEnv): string;
export declare function resolveProductionSiteUrl(env?: NodeJS.ProcessEnv): string | undefined;
export declare function createProtectedFetch(bypassSecret?: string, baseFetch?: typeof fetch): typeof fetch;
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