public function testPluck()
 {
     $resultSet = new ResultSet([['key' => 'value1'], ['key' => 'value2']]);
     $this->assertEquals(['value1', 'value2'], $resultSet->pluck('key'));
     $resultSet = new ResultSet([new Base(['property' => 'value1']), new Base(['property' => 'value2'])]);
     $this->assertEquals(['value1', 'value2'], $resultSet->pluck('property'));
 }