docs: function Totalvoice(accessToken, baseUrl, options) {
      options = options || {};
      let env = options.env || process.env;
  
      let opts = Object.assign({}, options);
      let token = accessToken || env.TOTALVOICE_ACCESS_TOKEN;
      if (!token) {
          throw new Error('Access Token inválido!');
      }
  
      opts['headers'] = {
          'Access-Token': token,
          'Content-Type': 'application/json'
      };
  
      this.httpClient = opts.httpClient || new Client(baseUrl, opts);
  
      this._chamada = undefined;
      this._audio = undefined;
      this._bina = undefined;
      this._perfil = undefined;
      this._conta = undefined;
      this._composto = undefined;
      this._conferencia = undefined;
      this._sms = undefined;
      this._tts = undefined;
      this._central = undefined;
      this._did = undefined;
      this._status = undefined;
      this._fila = undefined;
      this._validanumero = undefined;
  }