POST /

Content-Type: application/x-www-form-urlencoded

Action=CreateTransitGatewayMeteringPolicy&DryRun=true&MiddleboxAttachmentId.1=__Member__&MiddleboxAttachmentId.2=__Member__&TagSpecifications.1.ResourceType=capacity-reservation&TagSpecifications.1.Tag.1.Key=__Key__&TagSpecifications.1.Tag.1.Value=__Value__&TagSpecifications.1.Tag.2.Key=__Key__&TagSpecifications.1.Tag.2.Value=__Value__&TagSpecifications.2.ResourceType=capacity-reservation&TagSpecifications.2.Tag.1.Key=__Key__&TagSpecifications.2.Tag.1.Value=__Value__&TagSpecifications.2.Tag.2.Key=__Key__&TagSpecifications.2.Tag.2.Value=__Value__&TransitGatewayId=__TransitGatewayId__&Version=2016-11-15