export declare const ENV_VAR_KEY_REGEX: RegExp;
declare const __brand: unique symbol;
type Brand<B extends string> = {
    readonly [__brand]: B;
};
/** A DeviceSDK project ID. Use {@link asProjectId} to construct one from a string. */
export type ProjectId = string & Brand<"ProjectId">;
/** A DeviceSDK device ID, scoped to a project. Use {@link asDeviceId}. */
export type DeviceId = string & Brand<"DeviceId">;
/** A DeviceSDK script version ID. Use {@link asScriptId}. */
export type ScriptId = string & Brand<"ScriptId">;
/** A DeviceSDK API or CLI token. Use {@link asTokenId}. */
export type TokenId = string & Brand<"TokenId">;
/** Project ID validator: 3..64 chars, lowercase alnum + hyphen, must start with a letter. */
export declare const PROJECT_ID_REGEX: RegExp;
/** Device ID validator: same shape as project IDs. */
export declare const DEVICE_ID_REGEX: RegExp;
/** Validate and brand a string as a {@link ProjectId}. Throws on invalid input. */
export declare const asProjectId: (s: string) => ProjectId;
/** Validate and brand a string as a {@link DeviceId}. Throws on invalid input. */
export declare const asDeviceId: (s: string) => DeviceId;
/** Brand a string as a {@link ScriptId}. No format check (server-assigned UUIDs). */
export declare const asScriptId: (s: string) => ScriptId;
/** Brand a string as a {@link TokenId}. No format check (opaque). */
export declare const asTokenId: (s: string) => TokenId;
/**
 * Virtual GPIO that maps to the onboard LED on every supported board.
 *
 * - Pico W: WiFi-chip LED (not a real GPIO)
 * - Pico 2W: GPIO 25
 * - ESP32-C3 DevKitM-1: WS2812 on GPIO 8
 * - ESP32-C61 DevKitC-1: WS2812 on GPIO 5
 *
 * Use this constant in `setGpioState` to keep your code portable across
 * targets — the firmware translates it to the right physical pin.
 *
 * @example
 * await this.env.DEVICE.setGpioState(OnboardLED, "high");
 */
export declare const OnboardLED: 99;
export {};
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