POST /

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

Action=DescribeCapacityBlockOfferings&AllAvailabilityZones=true&CapacityDurationHours=1&DryRun=true&EndDateRange=2000-01-01T00%3A00%3A00Z&InstanceCount=1&InstanceType=__InstanceType__&MaxResults=1&NextToken=__NextToken__&StartDateRange=2000-01-01T00%3A00%3A00Z&UltraserverCount=1&UltraserverType=__UltraserverType__&Version=2016-11-15