module Playbook::BorderRadius

def border_radius_props
  selected_props = border_radius_options.keys.select { |sk| try(sk) }
  return nil unless selected_props.present?
  selected_props.map do |k|
    border_radius_value = send(k)
    "border_radius_#{border_radius_value}" if border_radius_values.include? border_radius_value
  end.compact.join(" ")
end