UpsertSubstratePayload

"""Result of creating or updating a substrate"""
type UpsertSubstratePayload {
  """
  The substrate as stored after the upsert (with its `sub_…` id, newly minted on create). Null when validation failed and nothing was written.
  """
  substrate: SubstrateState
  """Field-level validation errors keyed by input path. Empty on success."""
  errors: [FieldError!]!
}