{
  "appstream:userid": {
    "key": "appstream:userId",
    "description": "Filters access by the ID of the AppStream 2.0 user",
    "type": "String"
  },
  "aws:requesttag/${tagkey}": {
    "key": "aws:RequestTag/${TagKey}",
    "description": "Filters access by the presence of tag key-value pairs in the request",
    "type": "String"
  },
  "aws:resourcetag/${tagkey}": {
    "key": "aws:ResourceTag/${TagKey}",
    "description": "Filters access by the tag key-value pairs attached to the resource",
    "type": "String"
  },
  "aws:tagkeys": {
    "key": "aws:TagKeys",
    "description": "Filters access by the presence of tag keys in the request",
    "type": "ArrayOfString"
  }
}