Code Duplication    Length = 3-3 lines in 2 locations

src/AxillaryClasses/Calender.php 2 locations

@@ 28-30 (lines=3) @@
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    private function validateInput($year = null, $month = null, $day = null)
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    {
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        if (null === $year && null === $month && null === $day) {
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            throw new \InvalidArgumentException('A Caldender class must have at least a day, month, or year');
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        }
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        if (null !== $year && null === $month && null !== $day) {
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            throw new \InvalidArgumentException('a year day value is not valid');
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        }
@@ 31-33 (lines=3) @@
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        if (null === $year && null === $month && null === $day) {
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            throw new \InvalidArgumentException('A Caldender class must have at least a day, month, or year');
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        }
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        if (null !== $year && null === $month && null !== $day) {
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            throw new \InvalidArgumentException('a year day value is not valid');
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        }
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    }
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    private function valdidateState()