whole_func_string: function smsGetListCampaigns(callback, date_from, date_to) {
      var data = {
          'dateFrom': date_from,
          'dateTo': date_to
      }
  
      sendRequest('sms/campaigns/list', 'GET', data, true, callback);
  }
func_code_string: function smsGetListCampaigns(callback, date_from, date_to) {
      var data = {
          'dateFrom': date_from,
          'dateTo': date_to
      }
  
      sendRequest('sms/campaigns/list', 'GET', data, true, callback);
  }
func_documentation_string: Get list of campaigns
  
  @param callback
  @param date_from
  @param date_to