basic_struct.rb

class BasicStruct
  ATTRIBUTES = %i[]

  def initialize(options = {})
    attributes = options.with_indifferent_access
    self.class::ATTRIBUTES.each do |attribute|
      instance_variable_set("@#{attribute}", attributes[attribute])
      class_eval { attr_reader attribute }
    end
  end

  def to_h
    self.class::ATTRIBUTES.each_with_object({}) do |attribute, hash|
      hash[attribute] = instance_variable_get("@#{attribute}")
    end
  end
end