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- // Copyright 2017 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package istanbul
- import "errors"
- var (
- // ErrUnauthorizedAddress is returned when given address cannot be found in
- // current validator set.
- ErrUnauthorizedAddress = errors.New("unauthorized address")
- // ErrStoppedEngine is returned if the engine is stopped
- ErrStoppedEngine = errors.New("stopped engine")
- // ErrStartedEngine is returned if the engine is already started
- ErrStartedEngine = errors.New("started engine")
- )
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