Grant on object_type "tablespace"

[OurFriendIrony]

current version

Terraform v1.5.2
provider registry.terraform.io/cyrilgdn/postgresql v1.17.1
postgres 15.4

I would like to grant access to a tablespace for a role that does not own the tablespace. For all granting access to various table related features, I would use the postgresql_grant resource, targeting a particular object_type. eg

resource "postgresql_grant" "table" {
  database    = var.database
  schema      = var.schema
  object_type = "table"
  role        = var.role
  privileges  = var.privs_table
}

However, "tablespace" is not a valid grant option for this resource.
I can see that the standard postgres syntax would be the same/similar to standard object types here:

• https://www.postgresql.org/docs/15/sql-grant.html.

Is there an equivalent implementation for tablespace grants that I'm unaware of, or possibly this feature is not currently available.

I can get around this by making the role a member of the role that owns the tablespace, but I want to be able to control the permissions more strictly.

Any advice welcome