// initialize vm
const vm = rp.vms.init("main"); // basically just { id: "main" }
// do stuff with the vm
vm.addVariable("something");
vm.compileAndRun("print('thing')");
// destroy the vm, not necessary if it should be
// kept for the lifetime of the program like for a repl
vm.destroy();
// or also:
rp.vms.destroy("main");

// this guarantees that the vms can always be accessed, and can be cleared individually
const vmIds = rp.vms.ids() // ["main", "other_id"]
const otherVm = rp.vms.get("other_id")
if (vmIds.contains("main")) {
  /* finish up work w/ main */
  rp.vms.destroy("main");
}

// or clear them all at once
rp.vms.clear()

// if you use it after it's been destroyed, it throws an error
otherVm.destroy();
try {
  otherVm.doThing();
} catch (e) {
  e // Error: Invalid VM ID, it was freed while this reference was still held
}

otherVm.valid() // boolean

rp.vms.get("nonexistent"); // undefined