How to add AutoComplete and wildcard capability to function?
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I have a command called `UpdateModule` that copies modules from a network share to the local modules folder and then reloads the modules.

I'd like to add tab-completion to the modules so that it completes based on the items in `'~\Documents\WindowsPowerShell\Modules'`. Also I'd like to use `UpdateModule *` to update all of the modules.