chore: import upstream snapshot with attribution

docs/api_reference/source/python_api/mlflow.pyfunc.rst

@@ -0,0 +1,43 @@
+mlflow.pyfunc
+=============
+
+.. automodule:: mlflow.pyfunc
+    :members:
+    :undoc-members:
+    :show-inheritance:
+
+.. Include ``get_default_pip_requirements`` and ``get_default_conda_env``,
+   which are imported from `mlflow.pyfunc.model`, in the `mlflow.pyfunc` namespace
+.. autofunction:: mlflow.pyfunc.get_default_pip_requirements
+.. autofunction:: mlflow.pyfunc.get_default_conda_env
+
+.. Include ``PythonModelContext`` as a renamed class to avoid documenting constructor parameters.
+   This class is meant to be constructed implicitly, and users should only be aware of its
+   documented member properties.
+.. autoclass:: mlflow.pyfunc.PythonModelContext()
+    :members:
+    :undoc-members:
+
+.. Include ``PythonModel``, which is imported from `mlflow.pyfunc.model`, in the
+   `mlflow.pyfunc` namespace
+.. autoclass:: mlflow.pyfunc.PythonModel
+    :members:
+    :undoc-members:
+
+.. Include ``ChatModel``, which is imported from `mlflow.pyfunc.model`, in the
+   `mlflow.pyfunc` namespace
+.. autoclass:: mlflow.pyfunc.ChatModel
+    :members:
+    :undoc-members:
+
+.. Include ``ChatAgent``, which is imported from `mlflow.pyfunc.model`, in the
+   `mlflow.pyfunc` namespace
+.. autoclass:: mlflow.pyfunc.ChatAgent
+    :members:
+    :undoc-members:
+
+.. Include ``ResponsesAgent``, which is imported from `mlflow.pyfunc.model`, in the
+   `mlflow.pyfunc` namespace
+.. autoclass:: mlflow.pyfunc.ResponsesAgent
+    :members:
+    :undoc-members: