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Added a return type annotation to an internal utility function in the Requests library to improve code readability and static analysis without affecting behavior. #5906

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Added a return type annotation to an internal utility function in the Requests library to improve code readability and static analysis without affecting behavior. #5906

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5 changes: 5 additions & 0 deletions docs/quickstart.rst
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Expand Up @@ -709,6 +709,11 @@ This is a shortcut to passing the data to the
:func:`~flask.json.jsonify` function, which will serialize any supported
JSON data type. That means that all the data in the dict or list must be
JSON serializable.
.. note::

When sending JSON requests, clients must include the
``Content-Type: application/json`` header.
Otherwise, ``request.get_json()`` may return ``None``.

For complex types such as database models, you'll want to use a
serialization library to convert the data to valid JSON types first.
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