(self, other)
| 106 | return NotImplemented |
| 107 | return self.__class__(f'{self} * {other}') |
| 108 | def __rmul__(self, other): |
| 109 | return self.__class__(f'{other} * {self}') |
| 110 | def __truediv__(self, other): |
| 111 | if isinstance(other, F): |
| 112 | return NotImplemented |