import type { ChatPostMessageArguments, WebClient } from "@slack/web-api";
import { Channels } from ".";
import type { SlackConfig } from "./types";
export type SlackMessageOptions<C> = ChatPostMessageArguments & {
    channel: C;
};
export declare class SlackService<C = Channels> {
    private readonly options;
    readonly client: WebClient | null;
    constructor(options: SlackConfig, client: WebClient | null);
    sendText(text: SlackMessageOptions<C>["text"], opts: SlackMessageOptions<C>): Promise<void>;
    postMessage(req: SlackMessageOptions<C>): Promise<void>;
    private runApiRequest;
    private runWebhookRequest;
    private runStdoutRequest;
}