l be placed as padding, depending on the depth of nesting node</td>
                </tr>

                <tr>
                    <td>onCollapse</td>
                    <td>Function</td>
                    <td>null</td>
                    <td>Function, which will be executed when one of node will be collapsed</td>
                </tr>
                <tr>
                    <td>onExpand</td>
                    <td>Function</td>
                    <td>null</td>
                    <td>Function, whic