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export class Slackbot {  token: string;
  constructor(token: string) {    this.token = token;  }
  async sendMessage(channel: string, text: string) {    const response = await fetch("https://slack.com/api/chat.postMessage", {      method: "POST",      headers: {        "Content-Type": "application/json; charset=UTF-8",        "Authorization": `Bearer ${this.token}`,      },      body: JSON.stringify({        channel,        text,        as_user: true,      }),    });
    return response;  }}