Eloquent\Phony\Mock\Exception\MultipleInheritanceException::__construct PHP Метод

    public function __construct(array $classNames)
    {
        $this->classNames = $classNames;
        parent::__construct(sprintf('Unable to extend %s simultaneously.', implode(' and ', array_map(function ($className) {
            return var_export($className, true);
        }, $classNames))));
    }