Code Duplication    Length = 8-8 lines in 2 locations

src/Pair.php 2 locations

@@ 60-67 (lines=8) @@
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     *
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     * @return mixed|null
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     */
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    public function __unset($name)
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    {
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        if ($name === 'key' || $name === 'value') {
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            $this->$name = null;
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            return;
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        }
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        throw new OutOfBoundsException();
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    }
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    /**
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     * @param mixed $name
@@ 88-95 (lines=8) @@
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     *
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     * @return mixed|null
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     */
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    public function __set($name, $value)
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    {
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        if ($name === 'key' || $name === 'value') {
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            $this->$name = $value;
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            return;
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        }
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        throw new OutOfBoundsException();
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    }
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    /**
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     * Returns a copy of the Pair