> ## Documentation Index
> Fetch the complete documentation index at: https://docs.prefect.io/llms.txt
> Use this file to discover all available pages before exploring further.

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# flow_run_states

# `prefect.server.models.flow_run_states`

Functions for interacting with flow run state ORM objects.
Intended for internal use by the Prefect REST API.

## Functions

### `read_flow_run_state` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/flow_run_states.py#L18" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
read_flow_run_state(db: PrefectDBInterface, session: AsyncSession, flow_run_state_id: UUID) -> Union[orm_models.FlowRunState, None]
```

Reads a flow run state by id.

**Args:**

* `session`: A database session
* `flow_run_state_id`: a flow run state id

**Returns:**

* orm\_models.FlowRunState: the flow state

### `read_flow_run_states` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/flow_run_states.py#L36" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
read_flow_run_states(db: PrefectDBInterface, session: AsyncSession, flow_run_id: UUID) -> Sequence[orm_models.FlowRunState]
```

Reads flow runs states for a flow run.

**Args:**

* `session`: A database session
* `flow_run_id`: the flow run id

**Returns:**

* List\[orm\_models.FlowRunState]: the flow run states

### `delete_flow_run_state` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/flow_run_states.py#L60" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python  theme={null}
delete_flow_run_state(db: PrefectDBInterface, session: AsyncSession, flow_run_state_id: UUID) -> bool
```

Delete a flow run state by id.

**Args:**

* `session`: A database session
* `flow_run_state_id`: a flow run state id

**Returns:**

* whether or not the flow run state was deleted


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