def getparam(self, ext, filter=None):
        try:
            param = self.extensions[ext.upper()]
        except KeyError:
            return None
        if filter:
            try:
                return filter(param)
            except ValueError:
                return None
        else:
            return param
Gets the parameter associated with an extension.
dataset/ETHPy150Open slimta/python-slimta/slimta/smtp/extensions.py/Extensions.getparam