Importing raw csv without annotations

Is there a way to import time-series csv data with no annotations or header info into Influx 2.0 with Flux? The docs have an example with a ‘raw’ value for the mode tag:

import "csv"

  file: "/path/to/data-file.csv",
  mode: "raw"

Running this gives me the following error:
type error @3:1-6:2: found unexpected argument mode

Indicating that mode is not actually a valid argument for the csv.from() function. Any reason why this isn’t working?