error.rb

class ServicenameAPIError < StandardError
  def self.error_id(id)
    define_method :error_id do
      id
    end
  end
  def self.description(description)
    define_method :description do
      description
    end
  end
end

class RoomNotFoundError < ServicenameAPIError
    error_id 1
    description "room not found"
end

class TooLargeRequestError < ServicenameAPIError
  error_id 2
  description "too large request"
end