module ActiveSupport::LazyLoadHooks

def self.extended(base) # :nodoc:
  base.class_eval do
    @load_hooks = Hash.new { |h, k| h[k] = [] }
    @loaded     = Hash.new { |h, k| h[k] = [] }
    @run_once   = Hash.new { |h, k| h[k] = [] }
  end
end