model like struct class

struct_class.rb

class Location < Struct.new(:city,
                            :state,
                            :zipcode)
                            
  def initialize(from_hash)
    super(*from_hash.values_at(*members))
  end
    
  def display_city
    city.capitalize
  end 
end
  
location_hash = {
  :city => "City",
  :state => "State",
  :zipcode => 60613
}

location = Location.new(location_hash)
  
location.display_city # => "City"