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// Copyright 2015 Canonical Ltd.
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// Licensed under the AGPLv3, see LICENCE file for details.
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import "github.com/juju/juju/state"
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type blockAccess interface {
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AllBlocks() ([]state.Block, error)
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SwitchBlockOn(t state.BlockType, msg string) error
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SwitchBlockOff(t state.BlockType) error
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type stateShim struct {