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

# validation

# `prefect.utilities.schema_tools.validation`

## Functions

### `is_valid_schema` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L67](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L67)</sup>

```python theme={null}
is_valid_schema(schema: ObjectSchema, preprocess: bool = True) -> None
```

### `validate` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L76](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L76)</sup>

```python theme={null}
validate(obj: dict[str, Any], schema: ObjectSchema, raise_on_error: bool = False, preprocess: bool = True, ignore_required: bool = False, allow_none_with_default: bool = False) -> list[JSONSchemaValidationError]
```

### `is_valid` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L124](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L124)</sup>

```python theme={null}
is_valid(obj: dict[str, Any], schema: ObjectSchema) -> bool
```

### `prioritize_placeholder_errors` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L129](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L129)</sup>

```python theme={null}
prioritize_placeholder_errors(errors: list[JSONSchemaValidationError]) -> list[JSONSchemaValidationError]
```

### `build_error_obj` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L153](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L153)</sup>

```python theme={null}
build_error_obj(errors: list[JSONSchemaValidationError]) -> dict[str, Any]
```

### `process_properties` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L244](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L244)</sup>

```python theme={null}
process_properties(properties: dict[str, dict[str, Any]], required_fields: list[str], allow_none_with_default: bool = False) -> None
```

### `preprocess_schema` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L261](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L261)</sup>

```python theme={null}
preprocess_schema(schema: ObjectSchema, allow_none_with_default: bool = False) -> ObjectSchema
```

## Classes

### `CircularSchemaRefError` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L20](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L20)</sup>

### `ValidationError` <sup>[https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema\_tools/validation.py#L24](https://github.com/PrefectHQ/prefect/blob/main/src/prefect/utilities/schema_tools/validation.py#L24)</sup>