[calc][pyuno] How to modify borders of cell range via python

Greetings

Can someone advise on how to access and modify borders of cell ranges
programmatically? I've been attempting this using python macro scripts
without success. I also asked at
http://ask.libreoffice.org/en/question/38724/how-can-one-set-the-borders-of-a-cell-range-via-python-scripting-framework/

Looking forward to some assistance.

Thanks in advance
Onyeibo