Dynamic create Struct class in Ruby (pure)

dynamic_create_class_struct.rb

users_data = [{
  "id": "7c5dae5552338874e5053f2534d2767a",
  "email": "[email protected]",
  "first_name": "John",
  "last_name": "Appleseed",
  "username": "cfuser12345",
  "telephone": "+1 123-123-1234",
  "country": "US",
  "zipcode": "12345",
  "created_on": "2014-01-01T05:20:00Z",
  "modified_on": "2014-01-01T05:20:00Z",
  "two_factor_authentication_enabled": false,
  "suspended": false
},
{
  "id": "7c5dae5552338874e5053f2534d2767a",
  "email": "[email protected]",
  "first_name": "John",
  "last_name": "Appleseed",
  "username": "cfuser12345",
  "telephone": "+1 123-123-1234",
  "country": "US",
  "zipcode": "12345",
  "created_on": "2014-01-01T05:20:00Z",
  "modified_on": "2014-01-01T05:20:00Z",
  "two_factor_authentication_enabled": false,
  "suspended": false
}];

def create_class class_name, attrs
  unless Object.const_defined?(class_name)
    Object.const_set class_name, Struct.new(*attrs)
  end
end

users = users_data.map do |user|
  create_class "User", user.keys
  Object.const_get("User").new *user.values
end

p users.first