/**
 * Environment-variable gates for analytics. Pure functions — safe to import
 * anywhere, no Sentry side effects. Tested directly in `analytics.test.js`.
 */
/**
 * Read a process env var without crashing in browsers or in bundles where
 * `process.env` is a frozen / proxied object that throws on missing keys.
 */
export declare function readEnv(name: string): string | undefined;
/**
 * `AUGUST_SDK_FORCE_ANALYTICS=1` bypasses the dev/test and localhost gates.
 * Used by our own smoke-test script and by partners deliberately exercising
 * telemetry in a non-prod environment.
 */
export declare function isAnalyticsForcedOnViaEnv(): boolean;
/**
 * `AUGUST_SDK_DISABLE_ANALYTICS=1` is the env equivalent of passing
 * `analytics: { enabled: false }`. Useful when partners can't easily plumb
 * config through (CI runners, ops scripts).
 */
export declare function isAnalyticsDisabledViaEnv(): boolean;
/**
 * True when `NODE_ENV` is `'development'` or `'test'`. The SDK auto-disables
 * analytics in these environments so partners' local dev runs and Jest suites
 * don't pollute the production Sentry project.
 *
 * `NODE_ENV` undefined / `'production'` / `'staging'` / anything else → false.
 */
export declare function isNodeDevOrTestEnv(): boolean;
/**
 * True when the page is being served from a developer's own machine or private
 * network.
 *
 * The browser counterpart to {@link isNodeDevOrTestEnv}: bundlers strip or
 * stub `process.env`, so `NODE_ENV` cannot tell a `next dev` tab apart from a
 * production deploy. The hostname can. Always false in Node, where
 * `NODE_ENV` is the gate.
 *
 * Recognises `localhost` and the `.localhost` TLD (RFC 6761 reserves both for
 * loopback), mDNS `.local` names, and any loopback / private / link-local IP
 * literal in either address family. Anything else — including a public host
 * that merely *contains* one of those names, like `localhost.acme.com` — is
 * treated as a real deployment, because suppressing a genuine production
 * origin is the more costly mistake of the two.
 */
export declare function isLocalhost(): boolean;