Get-or-create a CSG-tree geometry node and return its ops Y.Array.
ops
Idempotent: if the geometry already exists with type==='csg-tree', returns the existing ops Y.Array.
type==='csg-tree'
Optional
Get-or-create a CSG-tree geometry node and return its
opsY.Array.Idempotent: if the geometry already exists with
type==='csg-tree', returns the existing ops Y.Array.