unstructured

6d7fe3ab - fix: default to None for the languages metadata field (#1743)

fix: default to None for the languages metadata field (#1743) ### Summary Closes #1714 Changes the default value for `languages` to `None` for elements that don't have text or the language can't be detected. ### Testing ``` from unstructured.partition.auto import partition filename = "example-docs/handbook-1p.docx" elements = partition(filename=filename, detect_language_per_element=True) # PageBreak elements don't have text and will be collected here none_langs = [element for element in elements if element.metadata.languages is None] none_langs[0].text ``` --------- Co-authored-by: ryannikolaidis <1208590+ryannikolaidis@users.noreply.github.com> Co-authored-by: Coniferish <Coniferish@users.noreply.github.com> Co-authored-by: cragwolfe <crag@unstructured.io>