def register(target, *mods, &block)
      options = mods.last.is_a?(Hash) ? mods.pop : {}
      mods << Module.new(&block) if block
      target = DuckPuncher.lookup_constant target
      Ducks.list[target] = Set.new [] unless Ducks.list.key?(target)
      mods = Array(mods).each do |mod|
        duck = UniqueDuck.new Duck.new(target, mod, options)
        Ducks.list[target] << duck
      end
      [target, *mods]
    end
def register(target, *mods, &block)
      options = mods.last.is_a?(Hash) ? mods.pop : {}
      mods << Module.new(&block) if block
      target = DuckPuncher.lookup_constant target
      Ducks.list[target] = Set.new [] unless Ducks.list.key?(target)
      mods = Array(mods).each do |mod|
        duck = UniqueDuck.new Duck.new(target, mod, options)
        Ducks.list[target] << duck
      end
      [target, *mods]
    end
def register ( target , * mods , & block ) options = mods . last . is_a? ( Hash ) ? mods . pop : { } mods << Module . new ( block ) if block target = DuckPuncher . lookup_constant target Ducks . list [ target ] = Set . new [ ] unless Ducks . list . key? ( target ) mods = Array ( mods ) . each do | mod | duck = UniqueDuck . new Duck . new ( target , mod , options ) Ducks . list [ target ] << duck end [ target , mods ] end
Register an extension with a target class
 When given a block, the block is used to create an anonymous module
 @param target [Class,Module,Object] constant or instance to extend
 @param mods [Array<Module>] modules to extend or mix into the target. The last argument can be a hash of options to customize the extension
 @option :only [Symbol, Array<Symbol>] list of methods to extend onto the target (the module must have these defined)
 @option :method [Symbol,String] the method used to apply the module, e.g. :extend (:include)
 @option :before [Proc] A hook that is called with the target class before #punch
 @option :after [Proc] A hook that is called with the target class after #punch
Register an extension with a target class When given a block the block is used to create an anonymous module