[PVE-User] how to create a snapshot from vm via api2 ?

[IMMO WETZEL]

Is that function may be not described at the current api  doc ?
I would expect at least three parameter
node,vmid,snapshotname,description,savevmstate{Boolean}

cos qm snapshot allow such parameter
root at prox01:~# qm help snapshot
USAGE: qm snapshot <vmid> <snapname> [OPTIONS]

 Snapshot a VM.

  <vmid>     integer (1 - N)
             The (unique) ID of the VM.
  <snapname> string
             The name of the snapshot.
  -description string
             A textual description or comment.
  -vmstate   boolean
             Save the vmstate