# is-fast-blocks (/docs/query/is-fast-blocks)

**Category:** Chain

## Parameters [#parameters]

This read takes no parameters.

## CLI [#cli]

```bash
btcli query is-fast-blocks --json
```

## Python [#python]

```python
import bittensor as sub

async with sub.Client("finney") as client:
    result = await client.read("is_fast_blocks")
```