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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Protocol](./puppeteer.protocol.md) &gt; [LayerTree](./puppeteer.protocol.layertree.md)

## Protocol.LayerTree namespace

<b>Signature:</b>

```typescript
export namespace LayerTree 
```

## Enumerations

|  Enumeration | Description |
|  --- | --- |
|  [ScrollRectType](./puppeteer.protocol.layertree.scrollrecttype.md) |  |

## Interfaces

|  Interface | Description |
|  --- | --- |
|  [CompositingReasonsRequest](./puppeteer.protocol.layertree.compositingreasonsrequest.md) |  |
|  [CompositingReasonsResponse](./puppeteer.protocol.layertree.compositingreasonsresponse.md) |  |
|  [Layer](./puppeteer.protocol.layertree.layer.md) | Information about a compositing layer. |
|  [LayerPaintedEvent](./puppeteer.protocol.layertree.layerpaintedevent.md) |  |
|  [LayerTreeDidChangeEvent](./puppeteer.protocol.layertree.layertreedidchangeevent.md) |  |
|  [LoadSnapshotRequest](./puppeteer.protocol.layertree.loadsnapshotrequest.md) |  |
|  [LoadSnapshotResponse](./puppeteer.protocol.layertree.loadsnapshotresponse.md) |  |
|  [MakeSnapshotRequest](./puppeteer.protocol.layertree.makesnapshotrequest.md) |  |
|  [MakeSnapshotResponse](./puppeteer.protocol.layertree.makesnapshotresponse.md) |  |
|  [PictureTile](./puppeteer.protocol.layertree.picturetile.md) | Serialized fragment of layer picture along with its offset within the layer. |
|  [ProfileSnapshotRequest](./puppeteer.protocol.layertree.profilesnapshotrequest.md) |  |
|  [ProfileSnapshotResponse](./puppeteer.protocol.layertree.profilesnapshotresponse.md) |  |
|  [ReleaseSnapshotRequest](./puppeteer.protocol.layertree.releasesnapshotrequest.md) |  |
|  [ReplaySnapshotRequest](./puppeteer.protocol.layertree.replaysnapshotrequest.md) |  |
|  [ReplaySnapshotResponse](./puppeteer.protocol.layertree.replaysnapshotresponse.md) |  |
|  [ScrollRect](./puppeteer.protocol.layertree.scrollrect.md) | Rectangle where scrolling happens on the main thread. |
|  [SnapshotCommandLogRequest](./puppeteer.protocol.layertree.snapshotcommandlogrequest.md) |  |
|  [SnapshotCommandLogResponse](./puppeteer.protocol.layertree.snapshotcommandlogresponse.md) |  |
|  [StickyPositionConstraint](./puppeteer.protocol.layertree.stickypositionconstraint.md) | Sticky position constraints. |

## Type Aliases

|  Type Alias | Description |
|  --- | --- |
|  [LayerId](./puppeteer.protocol.layertree.layerid.md) | Unique Layer identifier. |
|  [PaintProfile](./puppeteer.protocol.layertree.paintprofile.md) | Array of timings, one per paint step. |
|  [SnapshotId](./puppeteer.protocol.layertree.snapshotid.md) | Unique snapshot identifier. |