Route53.KeySigningKeysee http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-route53-keysigningkey.html
see http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-route53-keysigningkey.html;
val make_properties :
status:string ->
key_management_service_arn:string ->
hosted_zone_id:string ->
name:string ->
unit ->
propertiesval yojson_of_properties :
properties ->
[> `Assoc of (string * Yojson.Safe.t) list ]val create_attributes : string -> attributes