Code Duplication    Length = 1-1 lines in 2 locations

DependencyInjection/Configuration.php 2 locations

@@ 167-167 (lines=1) @@
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                                            ->fixXmlConfig('constraint') //allows <constraint> instead of <constraints>
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                                            ->beforeNormalization()
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                                                ->ifArray()
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                                                ->then(function ($v) { return isset($v['constraint']) || isset($v['constraints']) ? $v : array('constraints' => $v); })
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                                            ->end()
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                                            ->children()
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                                                ->arrayNode('constraints')
@@ 180-180 (lines=1) @@
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                                            ->fixXmlConfig('constraint') //allows <constraint> instead of <constraints>
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                                            ->beforeNormalization()
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                                                ->ifArray()
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                                                ->then(function ($v) { return isset($v['constraint']) || isset($v['constraints']) ? $v : array('constraints' => $v); })
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                                            ->end()
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                                            ->children()
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                                                ->arrayNode('constraints')