Code Duplication    Length = 8-8 lines in 2 locations

src/forms/ServerTariffForm.php 2 locations

@@ 142-149 (lines=8) @@
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        return $this;
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    }
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    protected function calculator()
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    {
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        if (!isset($this->_calculator)) {
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            $this->_calculator = Yii::createObject(ServerTariffCalculatorInterface::class, [[$this->tariff]]);
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        }
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        return $this->_calculator;
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    }
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    protected function parentCalculator()
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    {
@@ 151-158 (lines=8) @@
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        return $this->_calculator;
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    }
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    protected function parentCalculator()
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    {
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        if (!isset($this->_parentCalculator)) {
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            $this->_parentCalculator = Yii::createObject(ServerTariffCalculatorInterface::class, [[$this->parentTariff]]);
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        }
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        return $this->_parentCalculator;
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    }
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}
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