# {py:mod}`arelle.utils.validate.DuplicateFacts`

```{py:module} arelle.utils.validate.DuplicateFacts
```

```{autodoc2-docstring} arelle.utils.validate.DuplicateFacts
:allowtitles:
```

## Module Contents

### Functions

````{list-table}
:class: autosummary longtable
:align: left

* - {py:obj}`validateDuplicateFacts <arelle.utils.validate.DuplicateFacts.validateDuplicateFacts>`
  - ```{autodoc2-docstring} arelle.utils.validate.DuplicateFacts.validateDuplicateFacts
    :summary:
    ```
````

### API

````{py:function} validateDuplicateFacts(facts: list[arelle.ModelInstanceObject.ModelFact], duplicateType: arelle.ValidateDuplicateFactsConst.DuplicateType, codes: str | tuple[str, ...], msg: str | None = None, level: arelle.utils.validate.Validation.Level = Level.ERROR) -> collections.abc.Iterable[arelle.utils.validate.Validation.Validation]
:canonical: arelle.utils.validate.DuplicateFacts.validateDuplicateFacts

```{autodoc2-docstring} arelle.utils.validate.DuplicateFacts.validateDuplicateFacts
```
````