API with Powershell : Exporting report with bookmark

$exportBody = @{
   format = "PDF"
   powerBIReportConfiguration = @{
      settings = @{
         locale     = "fr-FR"
      }
      pages = @(@{
         pageName = "81438a987ba809f63572"
         bookmark = @{name = "0bb3e333319e8ad6c06c"}
      })
   }
} | ConvertTo-Json -Depth 10

$response = Invoke-RestMethod -Method Post -Uri $url -Headers $headers -ContentType "application/json" -Proxy $proxyUri -ProxyUseDefaultCredentials -Body $exportBody

But this code works 😃

There was a missing @ before the bookmark.