human
I wrote the below code

    if isinstance(jira_keys, unicode):
        jira_keys = [jira_keys]
    annotation = _FlakyAnnotation(jira_keys=pset(jira_keys), max_runs=max_runs, min_passes=min_passes)
    def wrapper(test_method):
        existing_flaky = getattr(test_method, _FLAKY_ATTRIBUTE, None)
        if (existing_flaky is None):
            note = annotation
        else:
            note = _combine_flaky_annotation(annotation, existing_flaky)
        setattr(test_method, _FLAKY_ATTRIBUTE, note)
        return test_method
    return wrapper

What's a good function header?
 ... Here's a good function header?
assistant
#Here's a good function header.

def flaky(jira_keys, max_runs=3, min_passes=1):