import { BaseConnector } from '../../base/base.connector';
import type { ISmsOptions, ISmsProvider, ISendMessageSuccessResponse, WithPassthrough, SmsSendResult, ISmsConnector } from '../../types';
import { ChannelTypeEnum } from '../../types';
import type { SinchConfig } from './sinch.config';
import type { SinchNarrowedInput } from './sinch.types';
export declare class SinchSmsConnector extends BaseConnector implements ISmsProvider, ISmsConnector {
    private config;
    readonly id = "sinch";
    readonly channelType: ChannelTypeEnum.SMS;
    constructor(config: SinchConfig, fetchImpl?: typeof fetch);
    /**
     * Thinwrap-native send. Implements `ISmsConnector`.
     * Builds a JSON body in snake_case (explicit casing — no `transformKeys`
     * invocation since each key is written by hand) and POSTs to the regional
     * batches endpoint `https://<region>.sms.api.sinch.com/xms/v1/<servicePlanId>/batches`.
     *
     * Sinch's batches API expects `to: string[]` even for single-recipient sends;
     * the connector wraps `[input.to]` automatically. Multi-recipient batches are
     * out of v1.0 Thinwrap baseline — consumers can override
     * `_passthrough.body.to`.
     */
    send(input: SinchNarrowedInput): Promise<SmsSendResult>;
    /**
     * Map Sinch error responses to canonical `ConnectorError` with the 6-value
     * `ProviderCode` union. Parses `Retry-After`:
     * parsed seconds embedded in `providerMessage` text; raw header value on
     * `cause.retryAfter`. No structured `retryAfterSeconds` field per
     * Retry is consumer policy (no retryAfterSeconds field).
     */
    private mapVendorError;
    sendMessage(options: ISmsOptions, bridgeProviderData?: WithPassthrough<Record<string, unknown>>): Promise<ISendMessageSuccessResponse>;
}