46     This is used for determine actions to perform based on labels, for
75     @returns: A string that is the prefix of version labels for the type
128     Base class to give a template for mapping labels to tests.
131     # A dictionary mapping labels to test names.
160     def run_task_actions(cls, job, host, labels):  argument
162         Run task actions on host that correspond to the labels.
169         @param labels: The list of job labels to work on.
172         unactionable = cls._filter_unactionable_labels(labels)
177         for action_item, value in cls._actions_and_values_iter(labels):
184     def _actions_and_values_iter(cls, labels):  argument
185         """Return sorted action and value pairs to run for labels.
190         actionable = cls._filter_actionable_labels(labels)
200     def _filter_unactionable_labels(cls, labels):  argument
202         Return labels that we cannot act on.
204         @param labels: A list of strings of labels.
205         @returns: A set of unactionable labels
207         return {label for label in labels
212     def _filter_actionable_labels(cls, labels):  argument
214         Return labels that we can act on.
216         @param labels: A list of strings of labels.
217         @returns: A set of actionable labels
219         return {label for label in labels if cls.acts_on(label)}
223     def partition(cls, labels):  argument
225         Filter a list of labels into two sets: those labels that we know how to
228         @param labels: A list of strings of labels.
230                   labels, and the second element is a set of the actionable
231                   labels.
236         for label in labels: