def export_air_usage(operator_id:@auth[:operatorId] , from:Time.parse("#{Time.now.year}-#{Time.now.month}-#{Time.now.day}").to_i, to:Time.now.to_i, period:'day')
      res = @api.post(path: "/stats/air/operators/#{operator_id}/export", payload: { from: from, to: to, period: period })
      open(res['url']).read
    end
def export_air_usage(operator_id:@auth[:operatorId] , from:Time.parse("#{Time.now.year}-#{Time.now.month}-#{Time.now.day}").to_i, to:Time.now.to_i, period:'day')
      res = @api.post(path: "/stats/air/operators/#{operator_id}/export", payload: { from: from, to: to, period: period })
      open(res['url']).read
    end
Operator配下の全Subscriberに関するAir使用状況をダウンロードする(デフォルトでは今月)