/**
 * DOT adapter for `@arki/env`.
 *
 * Wraps `defineEnv()` as a DOT plugin so a DOT app can validate its
 * environment alongside any other services. The plugin is sync (env
 * validation is sync), so the `boot` hook returns the validated env
 * object synchronously through the standard provides channel.
 *
 * @example
 * ```ts
 * import { defineApp } from '@arki/dot';
 * import { env } from '@arki/env/dot';
 * import { z } from 'zod';
 *
 * const app = await defineApp('my-app')
 *   .use(env({ schema: { PORT: z.coerce.number().default(3000) } }))
 *   .boot();
 *
 * console.log(app.services.env.PORT); // number, typed.
 * ```
 *
 * To mount a second env scope in the same app, rename the published wire
 * key at the mount site:
 *
 * ```ts
 * import { rename } from '@arki/dot';
 *
 * .use(env({ schema: appSchema }))
 * .use(rename(env({ schema: publicSchema }), { env: 'publicEnv' }, 'public-env'))
 * ```
 *
 * The `@arki/dot` package is an OPTIONAL peer of `@arki/env`. Importing
 * this adapter without `@arki/dot` installed will fail at module load —
 * that is intentional: the adapter only makes sense in a DOT app.
 */
import { type EmptyShape, type Plugin } from '@arki/dot/plugin';
import type { ZodType } from 'zod';
/**
 * Options for the env DOT adapter.
 *
 * @typeParam TSchema - The shape of the `server` schema record. The
 *   resulting `app.services.env` is typed from this.
 */
export type EnvDotOptions<TSchema extends Record<string, ZodType>> = {
    /** Zod schemas for each env var the plugin validates. */
    readonly schema: TSchema;
    /**
     * Forwarded to `defineEnv`. If `true`, the validator is skipped
     * entirely. By default, validation is skipped when `CI` is set or
     * `NODE_ENV !== 'development'`.
     */
    readonly skipValidation?: boolean;
};
/** The shape of services published by the env adapter. */
export type EnvServices<TSchema extends Record<string, ZodType>> = {
    readonly env: {
        readonly [K in keyof TSchema]: TSchema[K] extends ZodType<infer U> ? U : never;
    };
};
/**
 * Build a DOT plugin that validates and publishes a typed `env` service.
 *
 * @param options - Schema + optional config.
 * @returns A plugin that publishes `services.env`.
 */
export declare function env<TSchema extends Record<string, ZodType>>(options: EnvDotOptions<TSchema>): Plugin<EmptyShape, EnvServices<TSchema>>;
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