import { BaseConnector } from '../../base/base.connector';
import type { IChatOptions, IChatProvider, ISendMessageSuccessResponse, WithPassthrough, ChatSendResult, IChatConnector } from '../../types';
import { ChannelTypeEnum } from '../../types';
import type { TelegramConfig } from './telegram.config';
import type { TelegramNarrowedInput } from './telegram.types';
export declare class TelegramChatConnector extends BaseConnector implements IChatProvider, IChatConnector {
    private config;
    readonly id = "telegram";
    readonly channelType: ChannelTypeEnum.CHAT;
    constructor(config: TelegramConfig, fetchImpl?: typeof fetch);
    /**
     * Thinwrap-native send. Implements `IChatConnector`.
     * Builds a JSON body for Telegram's `POST /bot<token>/sendMessage` endpoint
     * with hand-mapped snake_case wire keys (no casing
     * middleware). Wire-key mapping for the nine narrowed fields is explicit
     * to avoid the "implicit casing contract" anti-pattern.
     */
    send(input: TelegramNarrowedInput): Promise<ChatSendResult>;
    /**
     * HTTP-layer + soft-error mapping. Telegram emits `parameters.retry_after`
     * (integer seconds) in the JSON body, not a `Retry-After` HTTP header —
     * outlier., `ConnectorError` carries no
     * `retryAfterSeconds` field; the parsed integer is appended to
     * `providerMessage`, and the raw integer is placed in `cause.retryAfter`.
     */
    private mapVendorError;
    private mapTelegramSoftError;
    sendMessage(options: IChatOptions, bridgeProviderData?: WithPassthrough<Record<string, unknown>>): Promise<ISendMessageSuccessResponse>;
}