---
title: task_run_states
sidebarTitle: task_run_states
---

# `prefect.server.models.task_run_states`



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


## Functions

### `read_task_run_state` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/task_run_states.py#L16" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
read_task_run_state(db: PrefectDBInterface, session: AsyncSession, task_run_state_id: UUID) -> Union[orm_models.TaskRunState, None]
```


Reads a task run state by id.

**Args:**
- `session`: A database session
- `task_run_state_id`: a task run state id

**Returns:**
- orm_models.TaskRunState: the task state


### `read_task_run_states` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/task_run_states.py#L34" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
read_task_run_states(db: PrefectDBInterface, session: AsyncSession, task_run_id: UUID) -> Sequence[orm_models.TaskRunState]
```


Reads task runs states for a task run.

**Args:**
- `session`: A database session
- `task_run_id`: the task run id

**Returns:**
- List[orm_models.TaskRunState]: the task run states


### `delete_task_run_state` <sup><a href="https://github.com/PrefectHQ/prefect/blob/main/src/prefect/server/models/task_run_states.py#L57" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>

```python
delete_task_run_state(db: PrefectDBInterface, session: AsyncSession, task_run_state_id: UUID) -> bool
```


Delete a task run state by id.

**Args:**
- `session`: A database session
- `task_run_state_id`: a task run state id

**Returns:**
- whether or not the task run state was deleted

