class ActiveRecord::Reflection::MacroReflection

instead. This allows plugins to hook into association object creation.
a new association object. Use +build_association+ or +create_association+
Note: Do not call +klass.new+ or +klass.create+ to instantiate

# => Client
Company.reflect_on_association(:clients).klass

end
has_many :clients
class Company < ActiveRecord::Base

has_many :clients returns the Client class
composed_of :balance, class_name: 'Money' returns the Money class

Returns the class for the macro.

def klass
  @klass ||= _klass(class_name)
end