How to properly use the listWithLineBreaks method from TextColumn

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    protected function casts(): array
    {
        return [
            'specs' => 'array',
        ];
    }

                TextColumn::make('specs')
                    ->label('specs')
                    ->searchable()
                    ->listWithLineBreaks()
                    ->formatStateUsing(function ($state) {
                        if (empty($state['data'])) {
                            return '-';
                        }
                        
                        return $state['data'];
                    })

                TextColumn::make('specs')
                    ->label('specs')
                    ->searchable()
                    ->listWithLineBreaks()
                    ->separator(';')
                    ->formatStateUsing(function ($state) {
                        if (empty($state['data'])) {
                            return '-';
                        }

                        return implode(';', $state['data']);
                    }),