houdini-vexwrangletools
一系列方便的方法，使 houdini 12.5 的 wrangle sops 使用起来更容易、更愉快。
目前只包含一种方法：
def literalsToParms(nodes):
"""For each node in nodes that has a snippet parameter (e.g. all the wrangle
sops):
Adds a parameter for each variable declared in the code, if that variable
is just assigned a literal. The declaration itself is changed so it
references the created paramet
