Bucket - Tag all the buckets which has public access

The following example policy will tag all the buckets which has public access

policies:
- name: tag-public-buckets
  description: Tag all the public buckets in the tenancy
  resource: oci.bucket
  filters:
   - type: attributes
     key:  public_access_type
     value: 'ObjectRead'
     op: eq
  actions:
   - type: update
     freeform_tags:
       'public_access': 'true'