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from annotator.uniformer.mmcv.utils import Registry, is_method_overridden
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HOOKS = Registry('hook')
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class Hook:
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stages = ('before_run', 'before_train_epoch', 'before_train_iter',
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'after_train_iter', 'after_train_epoch', 'before_val_epoch',
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'before_val_iter', 'after_val_iter', 'after_val_epoch',
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'after_run')
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def before_run(self, runner):
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pass
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def after_run(self, runner):
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pass
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def before_epoch(self, runner):
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pass
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def after_epoch(self, runner):
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pass
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def before_iter(self, runner):
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pass
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def after_iter(self, runner):
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pass
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def before_train_epoch(self, runner):
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self.before_epoch(runner)
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def before_val_epoch(self, runner):
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self.before_epoch(runner)
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def after_train_epoch(self, runner):
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self.after_epoch(runner)
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def after_val_epoch(self, runner):
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self.after_epoch(runner)
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def before_train_iter(self, runner):
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self.before_iter(runner)
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def before_val_iter(self, runner):
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self.before_iter(runner)
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def after_train_iter(self, runner):
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self.after_iter(runner)
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def after_val_iter(self, runner):
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self.after_iter(runner)
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def every_n_epochs(self, runner, n):
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return (runner.epoch + 1) % n == 0 if n > 0 else False
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def every_n_inner_iters(self, runner, n):
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return (runner.inner_iter + 1) % n == 0 if n > 0 else False
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def every_n_iters(self, runner, n):
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return (runner.iter + 1) % n == 0 if n > 0 else False
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def end_of_epoch(self, runner):
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return runner.inner_iter + 1 == len(runner.data_loader)
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def is_last_epoch(self, runner):
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return runner.epoch + 1 == runner._max_epochs
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def is_last_iter(self, runner):
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return runner.iter + 1 == runner._max_iters
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def get_triggered_stages(self):
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trigger_stages = set()
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for stage in Hook.stages:
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if is_method_overridden(stage, Hook, self):
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trigger_stages.add(stage)
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method_stages_map = {
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'before_epoch': ['before_train_epoch', 'before_val_epoch'],
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'after_epoch': ['after_train_epoch', 'after_val_epoch'],
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'before_iter': ['before_train_iter', 'before_val_iter'],
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'after_iter': ['after_train_iter', 'after_val_iter'],
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}
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for method, map_stages in method_stages_map.items():
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if is_method_overridden(method, Hook, self):
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trigger_stages.update(map_stages)
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return [stage for stage in Hook.stages if stage in trigger_stages]
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