Should API use kwargs or a `values` list argument?

[keller-mark]

The kwargs are nice but mean that users cannot choose value names that clash with existing (or future) named args like esm, width, height, and mode.

widget <- AnyHtmlWidget$new(esm = esm, mode = "static", count = 1)
# vs
widget <- AnyHtmlWidget$new(esm = esm, mode = "static", values = list(count = 1))