> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt
> Use this file to discover all available pages before exploring further.
# controller()
export const GitHubLink = ({url}) =>
GitHub source
;
### function `controller`
```python theme={null}
controller(
sweep_id_or_config: 'str | dict | None' = None,
entity: 'str | None' = None,
project: 'str | None' = None
) → _WandbController
```
Public sweep controller constructor.
**Examples:**
```python theme={null}
import wandb
tuner = wandb.controller(...)
print(tuner.sweep_config)
print(tuner.sweep_id)
tuner.configure_search(...)
tuner.configure_stopping(...)
```