setChatPermissions(chatId, chatPermissions, form = {}) {
    form.chat_id = chatId;
    form.permissions = stringify(chatPermissions);
    return this._request('setChatPermissions', { form });
  }
Use this method to set default chat permissions for all members.

The bot **must be an administrator in the group or a supergroup** for this to
work and **must have the `can_restrict_members` admin rights.**

@param {Number|String} chatId  Unique identifier for the target chat or username of the target channel (in the format `@channelusername`)
@param {Array} chatPermissions New default chat permissions
@param {Object} [options] Additional Telegram query options
@return {Promise} True on success
@see https://core.telegram.org/bots/api#setchatpermissions