gh-119010: Adds docs about __type_params__ to `functools.update_wra…

…pper` (#119012)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>

Doc/library/functools.rst

@@ -646,8 +646,9 @@ The :mod:`functools` module defines the following functions:
  attributes of the wrapper function are updated with the corresponding attributes
  from the original function. The default values for these arguments are the
  module level constants ``WRAPPER_ASSIGNMENTS`` (which assigns to the wrapper
- function's ``__module__``, ``__name__``, ``__qualname__``, ``__annotations__``
- and ``__doc__``, the documentation string) and ``WRAPPER_UPDATES`` (which
+ function's ``__module__``, ``__name__``, ``__qualname__``, ``__annotations__``,
+ ``__type_params__``, and ``__doc__``, the documentation string)
+ and ``WRAPPER_UPDATES`` (which
  updates the wrapper function's ``__dict__``, i.e. the instance dictionary).
 
  To allow access to the original function for introspection and other purposes
@@ -677,6 +678,9 @@ The :mod:`functools` module defines the following functions:
  function, even if that function defined a ``__wrapped__`` attribute.
  (see :issue:`17482`)
 
+ .. versionchanged:: 3.12
+ The ``__type_params__`` attribute is now copied by default.
+
 
 .. decorator:: wraps(wrapped, assigned=WRAPPER_ASSIGNMENTS, updated=WRAPPER_UPDATES)