def get_choices(self, **context):
        args = []
        for varname in self.context_params:
            args.append(context.get(varname, None))
        return self.meth(*args)
Return a list of choices for this chooser, using keyword parameters
dataset/ETHPy150Open lsaffre/lino/lino/utils/choosers.py/Chooser.get_choices