/**
 * Edubridge Constants
 *
 * Configuration constants for the Edubridge client.
 */
/**
 * Environment variable names for fallback config.
 *
 * Supports fallback chains - tries each env var in order until one is defined:
 * - `TIMEBACK_API_*` (canonical/preferred)
 * - `TIMEBACK_*` (unified Timeback shorthand)
 * - `EDUBRIDGE_*` (service-specific legacy)
 */
export declare const EDUBRIDGE_ENV_VARS: {
    readonly baseUrl: readonly ["TIMEBACK_API_BASE_URL", "TIMEBACK_BASE_URL", "EDUBRIDGE_BASE_URL"];
    readonly clientId: readonly ["TIMEBACK_API_CLIENT_ID", "TIMEBACK_CLIENT_ID", "EDUBRIDGE_CLIENT_ID"];
    readonly clientSecret: readonly ["TIMEBACK_API_CLIENT_SECRET", "TIMEBACK_CLIENT_SECRET", "EDUBRIDGE_CLIENT_SECRET"];
    readonly authUrl: readonly ["TIMEBACK_API_AUTH_URL", "TIMEBACK_AUTH_URL", "EDUBRIDGE_TOKEN_URL"];
};
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