PyFluent can't access `meshing.Graphics` methods

[raph-luc]

Here using meshing to mean the root session object

In the Python Console:

>>> hasattr(meshing, "Graphics")
True

From PyFluent with the same session:

>>> hasattr(meshing, "Graphics")
False

To reproduce: launch or connect to a Fluent meshing session with graphics available using PyFluent

It is listed in the PyFluent documentation
https://fluent.docs.pyansys.com/version/dev/api/meshing/datamodel/meshing/Graphics/Graphics_contents.html

Edit: meshing.meshing.Graphics.ClippingPlane(InsertClippingPlane=False) does work as a workaround for this, for now

Should Graphics be moved up to the root level? It was originally developed more towards Web UI and graphics interface usage, but I can see that it will be useful for some PyFluent users as well

Also separate note, but I think the documentation is a bit misleading, as it seems to imply that there should be a .datamodel child of the root session

Another note: I think possibly renaming the meshing child of the root object to datamodel would make sense too

[prmukherj]

We need to correct the documentation by removing 'datamodel'.

[raph-luc]

I think should also consider updating the PyFluent examples to use session to represent the session object, so that we have session.workflow and session.meshing in the examples

Instead of using meshing for the root session object as we have now, which ends up with meshing.meshing and meshing.workflow being used in the examples

For example:
https://fluent.docs.pyansys.com/version/stable/examples/00-fluent/exhaust_system_settings_api.html#sphx-glr-examples-00-fluent-exhaust-system-settings-api-py