Are you sure TheAentMachine\AentDocke...eEnum::getVolumeTypes() of type array can be used in concatenation?
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Ignorable by Annotation
)
If this is a false-positive, you can also ignore this issue in your code via the ignore-type annotation
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parent::__construct($this->invalidVolumeType . " is not a valid volume type. Are accepted : " . /** @scrutinizer ignore-type */ VolumeTypeEnum::getVolumeTypes());