Get IVR XML

curl https://api.{cluster}.{platform}.voiger.io/v1/admin/ivrs/{id}/content \
  -H "Cookie: sid=$VOIGER_SESSION"

const res = await fetch("https://api.{cluster}.{platform}.voiger.io/v1/admin/ivrs/{id}/content", {
  method: "GET",
  credentials: "include",
})

const data = await res.json()