code: func (c *LayerTree) ReleaseSnapshot(snapshotId string) (*gcdmessage.ChromeResponse, error) {
  	var v LayerTreeReleaseSnapshotParams
  	v.SnapshotId = snapshotId
  	return c.ReleaseSnapshotWithParams(&v)
  }
docs: // ReleaseSnapshot - Releases layer snapshot captured by the back-end.
  // snapshotId - The id of the layer snapshot.