|  | /**
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							|  |  * Implements hook_preprocess_HOOK().
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							|  |  */
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							|  | function {{ machine_name }}_preprocess_HOOK(&$variables) {
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							|  |   // This example is from rdf_preprocess_image(). It adds an RDF attribute
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							|  |   // to the image hook's variables.
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							|  |   $variables['attributes']['typeof'] = ['foaf:Image'];
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							|  | }
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