Vsnips 请问Vsnips支持在snippet中使用 !p 吗？

ultisnips支持!p在snippet中执行python代码，请问Vsnips支持这个功能吗？谢谢。

 4.4.4 Global Snippets:                                   *UltiSnips-globals*

Global snippets provide a way to reuse common code in multiple snippets.
Currently, only python code is supported. The result of executing the contents
of a global snippet is put into the globals of each python block in the
snippet file. To create a global snippet, use the keyword 'global' in place of
'snippet', and for python code, you use '!p' for the trigger. For example, the
following snippet produces the same output as the last example . However, with
this syntax the 'upper_right' snippet can be reused by other snippets.

------------------- SNIP -------------------
global !p
def upper_right(inp):
    return (75 - 2 * len(inp))*' ' + inp.upper()
endglobal

snippet wow
${1:Text}`!p snip.rv = upper_right(t[1])`
endsnippet
------------------- SNAP -------------------
wow<tab>Hello World ->
Hello World                                                     HELLO WORLD

Python global functions can be stored in a python module and then imported.
This makes global functions easily accessible to all snippet files. Since Vim
7.4 you can just drop python files into ~/.vim/pythonx and import them
directly inside your snippets. For example to use
~/.vim/pythonx/my_snippets_helpers.py  >
   global !p
   from my_snippet_helpers import *
   endglobal