Hey! I am a bit confused with the Keto Expand API. I want to _expand the subject's permissions. A_nd it does not seem to work. Here are my relationship tuples:

{
    "namespace": "ManagedAccount",
    "object": "account_1",
    "relation": "admins",
    "subject_set": {
      "namespace": "User",
      "object": "user1"
    }
  },

Admin relationship gives the following permissions:

'transactions.read': (ctx: Context): boolean =>
      this.related.admins.includes(ctx.subject) 
    'reports.write': (ctx: Context): boolean =>
      this.related.admins.includes(ctx.subject) 
    'reports.read': (ctx: Context): boolean =>
      this.related.admins.includes(ctx.subject)

'transactions.read', 'reports.write', 'reports.read' I want to make a query, that takes the User ID (subject) and returns the list of permissions they have for different managed accounts. I am interested in both relationships (roles such as admins) and permissions. How do I make this query using Ory Keto. Expand API seems to be the right tool, but don't get the expected result. Assist me here please.