Reference RequestField.from_tuples in encode_multipart_formdata docstring
MODIFY
src/urllib3/filepost.py
src/urllib3/filepost.py
@@ -54,6 +54,7 @@ def encode_multipart_formdata(
:param fields:
Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`).
+ Values are processed by :func:`urllib3.fields.RequestField.from_tuples`.
:param boundary:
If not specified, then a random boundary will be generated using

Reference RequestField.from_tuples in encode_multipart_formdata docstring