  0x --cmd <command> [args]
  0x -c <command> [args]

  Commands

    gen:
    The gen command will regenerate the flamegraph from
    a JSON or stacks.out file (autodetected)

    Create a flamegraph from a stacks file (e.g. dtrace
    and perf script output)

    0x -c gen [flags] <stacks.<pid>.out file>

    Flags include `--tiers` and `--langs`

