class Net::IMAP::ConnectionState

def self.define(symbol, *attrs)
  symbol => Symbol
  state = super(*attrs)
  state.const_set :NAME, symbol
  state
end

def authenticated?;     to_sym == :authenticated     end

def deconstruct; [symbol, *super] end

def deconstruct_keys(names)
  hash = super
  hash[:symbol] = symbol if names.nil? || names.include?(:symbol)
  hash[:name]   = name   if names.nil? || names.include?(:name)
  hash
end

def logout?;            to_sym == :logout            end

def name;   self.class::NAME.name end

def not_authenticated?; to_sym == :not_authenticated end

def selected?;          to_sym == :selected          end

def symbol; self.class::NAME      end

def to_h(&block)
  hash = deconstruct_keys(nil)
  block ? hash.to_h(&block) : hash
end