def unescape(self, varname, value):
        """
        Unescape `value`.
        """
        f = self.unescape_funcs.get(varname)
        return f(value) if f else value
def unescape ( self , varname , value ) : f = self . unescape_funcs . get ( varname ) return f ( value ) if f else value
Unescape `value`.