S3 Noncurrentversionexpiration Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "title": "NoncurrentVersionExpiration",
  "type": "object",
  "description": "Specifies when noncurrent object versions expire. Upon expiration, Amazon S3 permanently deletes the noncurrent object versions. You set this lifecycle configuration action on a bucket that has versioning enabled (or suspended) to request that Amazon S3 delete noncurrent object versions at a specific period in the object's lifetime.",
  "fields": [
    {
      "name": "NoncurrentDays",
      "type": "string"
    },
    {
      "name": "NewerNoncurrentVersions",
      "type": "string"
    }
  ]
}