POST /propmap/lookup/ane-dc HTTP/1.1
Host: alto.example.com
Accept: application/alto-propmap+json,application/alto-error+json
Content-Length: 155
Content-Type: application/alto-propmapparams+json

{
  "entities" : [".ane:dc21",
                ".ane:dc45-srv9",
                ".ane:dc6-srvcluster8"],
  "properties" : [ "storage-capacity", "cpu"]
}