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def report_transport_activity(self, transport, byte_count, direction):
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"""Called by transports as they do IO.
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This may update a progress bar, spinner, or similar display.
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By default it does nothing.
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def _progress_updated(self, task):
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"""A task has been updated and wants to be displayed.
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warnings.warn("%r is not the top progress task %r" %
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(task, self._task_stack[-1]))
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self._progress_view.show_progress(task)