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

# Base

> systematica.registries.base

## `Register`

```python theme={null}
Register(
    *args,
    **kwargs,
)
```

Configuration class with the `frozen_keys` flag enabled.

Args:
\*args: Positional arguments for `Config`.
\*\*kwargs: Keyword arguments for `Config`.

### Ancestors

* `vectorbtpro.utils.config.FrozenConfig`
* `vectorbtpro.utils.config.Config`
* `vectorbtpro.utils.pickling.pdict`
* `vectorbtpro.utils.checks.Comparable`
* `vectorbtpro.utils.pickling.Pickleable`
* `vectorbtpro.utils.formatting.Prettified`
* `vectorbtpro.utils.base.Base`
* `builtins.dict`

### Methods

#### `from_field_name`

```python theme={null}
from_field_name(
    self_or_cls,
    key: str,
)
```