I stumbled upon this feature for functions, and was eager to try it out.
However, I ran into an error message, after trying the snippet in python-mode:
[yas] elisp error: Symbol’s value as variable is void: text
From what I read on his blog, and seeing the others trying this snippet, it went propably without any problems for them. I couldn't figure out how I could bind any value to the text. Any suggestion?