<el-tree
:data="data"
show-checkbox
node-key="id"
default-expand-all
:expand-on-click-node="false">
<span class="custom-tree-node" slot-scope="{ node, data }">
<span>{{ node.label }}</span>
<span>
<el-button
type="text"
size="mini"
@click="() => append(data)">
Append
</el-button>
<el-button
type="text"
size="mini"
@click="() => remove(node, data)">
Delete
</el-button>
</span>
</span>
</el-tree>
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