'Gets the completions to display in the quick panel
Should return a list of completions formatted to be displayed in the
quick panel.
:param view:
The view the completions are requested for
:param prefix:
The current word the user has selected
Note that if completions are entered using { , etc. this will be
blank
:param line:
The contents of the first selected line, used by some plugins to
determine the correct completions'

def get_completions(self, view, prefix, line):

    return None
