/** Scaleway Transactional Email (TEM) region — physically EU-resident clusters. */
export type ScalewayRegion = 'fr-par' | 'nl-ams' | 'pl-waw';
export interface ScalewayConfig {
    /** Scaleway IAM API secret key (sent verbatim in the `X-Auth-Token` header). */
    secretKey: string;
    /**
     * Scaleway project id. REQUIRED — written to every send as the `project_id`
     * wire field. Account-scoped, so it lives in config rather than per-send input.
     */
    projectId: string;
    /** Default sender email address. */
    from: string;
    /** Optional display name composed into the `from.name` wire field. */
    senderName?: string;
    /**
     * EU region. Defaults to `'fr-par'`. Selected value is interpolated into the
     * endpoint path (`/regions/{region}/emails`) — NOT a host swap.
     */
    region?: ScalewayRegion;
    /** Optional BYO fetch implementation (defaults to `globalThis.fetch`). */
    fetch?: typeof fetch;
}