Note about metrics in AbstractWrapperTeacher.act()

[EricMichaelSmith]

Add to the docstring that self.task.act() must be called in the wrapper's .act() method for metrics to be recorded correctly

[github-actions]

Your PR contains a change to a task. Please paste the results of the following command into a comment:

python tests/datatests/test_new_tasks.py

[stephenroller]

wait, most metrics are implemented in observe tho, I don't understand.

[EricMichaelSmith]

wait, most metrics are implemented in observe tho, I don't understand.

Yes, but assuming that the wrapped teacher is a FixedDialogTeacher, if self.task.act() is not called, self.lastY will not get set and self.task.observe() will not be able to record metrics. But not calling self.task.act() would also lead to other problems like (most importantly) not getting the act Message from the wrapped teacher, so I've just generalized this language.

[stephenroller]

maybe s/will/should

Thanks for the explanation