How to filter is not null

is this the correct syntax?

supabase.from().select().not('column', is, null)

supabase.from().select().not('column', is, null)

supabase.from().select().not('column', is, null)

supabase.from().select().not('column', is, null)
https://supabase.com/docs/reference/javascript/not

Finds all rows which doesn't satisfy the filter.