type CatalogSelectionEntry {
  """**BETA** `CatalogSelectionEntry` id."""
  id: ID!

  """
  **BETA** Opaque id of the link column that led to this entry, `null` for root entries.
  """
  sourceColumnId: ID

  """**BETA** The selected `CatalogRow`."""
  row: CatalogRow!

  """**BETA** Linked-row children of this entry."""
  children: [CatalogSelectionEntry!]!
}