Can I pass an unquoted column name as a property in S7 class?

can I pass an unquoted column name as property argument in S7 new_class() function?

The below returns an error

library(S7)
library(tidyverse)

test <- new_class(
  'test'
  ,properties = list(
    data=class_data.frame
    ,column=class_any
    )
)

test(mtcars,cyl)

You need to create a constructor:

test <- new_class(
  'test',
  properties = list(
    data = class_data.frame,
    column = class_name
  ),
  constructor = function(data, column) {
    column <- substitute(column)
    new_object(S7_object(), data = data, column = column)
  }
)

test(mtcars,cyl)
#' <test>
#'  @ data  :'data.frame':  32 obs. of  11 variables:
#'  .. $ mpg : num  21 21 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 ...
#'  .. $ cyl : num  6 6 4 6 8 6 8 4 4 6 ...
#'  .. $ disp: num  160 160 108 258 360 ...
#'  .. $ hp  : num  110 110 93 110 175 105 245 62 95 123 ...
#'  .. $ drat: num  3.9 3.9 3.85 3.08 3.15 2.76 3.21 3.69 3.92 3.92 ...
#'  .. $ wt  : num  2.62 2.88 2.32 3.21 3.44 ...
#'  .. $ qsec: num  16.5 17 18.6 19.4 17 ...
#'  .. $ vs  : num  0 0 1 1 0 1 0 1 1 1 ...
#'  .. $ am  : num  1 1 1 0 0 0 0 0 0 0 ...
#'  .. $ gear: num  4 4 4 3 3 3 3 4 4 4 ...
#'  .. $ carb: num  4 4 1 1 2 1 4 2 2 4 ...
#'  @ column: symbol cyl