export type FpHonoEnv = Record<string, string | null> | null | undefined;
/**
 * In Hono-node environments, env vars are not available on the `env` object that's passed to `app.fetch`.
 * This helper will also check process.env and Deno.env.toObject() and fallback to that if the env var is not present on the `env` object.
 *
 * If multiple keys are provided, the first key that exists will be returned.
 */
export declare function getFromEnv(honoEnv: unknown, key: string | string[]): string | null;
/**
 * Return `process.env` if we're in Node.js, `Deno.env.toObject()` if we're in Deno, otherwise `honoEnv`
 *
 * In the case of Deno, we merge the `Deno.env.toObject()` with the `honoEnv` object.
 *
 * Used to get the env object for accessing and recording env vars.
 * This exists because environment variables are accessed differently across runtimes.
 *
 * @param honoEnv - The env object from the `app.fetch` method.
 * @returns - Environment variables from the appropriate runtime source
 */
export declare function getPlatformSafeEnv(honoEnv: unknown): unknown;