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* This file is part of SwiftMailer.
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* (c) 2004-2009 Chris Corbyn
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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* Observes changes in an Mime entity's character set.
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* @author Chris Corbyn
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interface Swift_Mime_CharsetObserver
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* Notify this observer that the entity's charset has changed.
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* @param string $charset
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public function charsetChanged($charset);