types.backends.validate_backend

types.backends.validate_backend(backend)

Validate and normalize backend string.

Parameters

Name	Type	Description	Default
backend	str	Backend name to validate	required

Returns

Name	Type	Description
	Backend	Validated backend (typed)

Raises

Name	Type	Description
	ValueError	If backend is not valid

Examples

>>> validate_backend('numpy')
'numpy'
>>> validate_backend('pytorch')  # ValueError

# types.backends.validate_backend { #cdesym.types.backends.validate_backend }

```python
types.backends.validate_backend(backend)
```

Validate and normalize backend string.

## Parameters {.doc-section .doc-section-parameters}

| Name    | Type   | Description              | Default    |
|---------|--------|--------------------------|------------|
| backend | str    | Backend name to validate | _required_ |

## Returns {.doc-section .doc-section-returns}

| Name   | Type    | Description               |
|--------|---------|---------------------------|
|        | Backend | Validated backend (typed) |

## Raises {.doc-section .doc-section-raises}

| Name   | Type       | Description             |
|--------|------------|-------------------------|
|        | ValueError | If backend is not valid |

## Examples {.doc-section .doc-section-examples}

```python
>>> validate_backend('numpy')
'numpy'
>>> validate_backend('pytorch')  # ValueError
```