# `Chronicle.ReadModels.DecisionRead`
[🔗](https://github.com/Cratis/Chronicle.Elixir/blob/main/lib/chronicle/read_models/decision_read.ex#L4)

A read model instance together with the concurrency guard that protects the decision made
from it.

Returned by `Chronicle.ReadModels.DecisionReads.get/3` and `get_detached/3` (and their stream
variants). Never built directly - the struct's fields are internal shape, read by
`Chronicle.Transactions.UnitOfWork.add_decision_read/2` and `Chronicle.EventSequences.EventLog`
at commit time, not part of the public contract.

# `stream_scope`

```elixir
@type stream_scope() :: %{
  event_source_id: String.t(),
  event_stream_type: String.t(),
  event_stream_id: String.t(),
  event_source_type: String.t()
}
```

# `t`

```elixir
@type t() :: %Chronicle.ReadModels.DecisionRead{
  event_sequence_id: String.t(),
  event_source_id: String.t(),
  event_store: String.t(),
  event_types: [module()],
  instance: struct() | nil,
  key: String.t(),
  namespace: String.t(),
  read_model: module(),
  scope: Chronicle.Events.ConcurrencyScope.t(),
  stream: stream_scope() | nil
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*