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      <?php
 
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      /*
 
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       * This file is part of Twig.
 
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       *
 
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       * (c) 2010 Fabien Potencier
 
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       * (c) 2010 Arnaud Le Blanc
 
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       *
 
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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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       */
 
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      /**
 
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       * Represents a template function.
 
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       *
 
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       * @package    twig
 
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       * @author     Arnaud Le Blanc <arnaud.lb@gmail.com>
 
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       */
 
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      interface Twig_FunctionInterface
 
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      {
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          /**
 
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           * Compiles a function.
 
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           *
 
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           * @return string The PHP code for the function
 
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           */
 
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          function compile();
 
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          function needsEnvironment();
 
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          function needsContext();
 
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          function getSafe(Twig_Node $filterArgs);
 
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          function setArguments($arguments);
 
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          function getArguments();
 
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      }
 
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