dummy method - to be overwritten by child class
(self, n=None)
| 1904 | def _tracer(self, a=None, b=None): |
| 1905 | """dummy method - to be overwritten by child class""" |
| 1906 | def _delay(self, n=None): |
| 1907 | """dummy method - to be overwritten by child class""" |
| 1908 | |
| 1909 | fd = forward |
| 1910 | bk = back |