How to access arguments of a parent method within a nested method

I am creating a module with one method, that when included in a class, the class will obtain a new field defined by the method.

i.e.

module HasColors
  extend ActiveSupport::Concern
  included do

  def self.has_colors(
    colors_array,
    is_required: false,
    default: [], 
    allow_empty: true,
  )

    field :colors, type: Array, default: default
    validate :colors_are_valid, if: :colors_changed?

    def colors_are_valid
      return if colors.length == 0 && allow_empty
      return unless colors.all?{|color| colors_array.includes?(color) }

      errors.add(
        :colors,
        "Please include valid colors: #{colors_array.join(", ")}"
      )
    end
  end
end

When called in a class:

class ColorPallete
  include HasColors
  
  has_colors(["green", "orange", "red"])
...
end

the problem I'm running into, is regarding the validation method inside the module. The colors_are_valid method is not able to read any of the arguments defined in the has_colors method, i.e. allow_empty, colors_array, etc.

Is there a way I can access these arguments?