possible pry plugin parameterization

plugin_example.rb

#
# The result is an anonymous module (named "name") that can be mixed into the
# Commands class.
#
Pry.plugin "name" do

  ## Settings

  settings do
    bool   :make_awesome,     :default => true
    int    :max_goats,        :default => proc { maximum_goat_memory }
    enum   :goat_type,        :default => "plain", :options => %w[ plain mountain billy ]
    string :favorite_goat,    :default => "Super Dave the Goat", :validate => proc { goat[/super/i] }
    time   :expire_goats,     :default => 5.minutes
  end

  
  ## Helpers

  def helper
    "I HELP GOATS"
  end


  ## Commands

  command "help_a_goat" do |arg|
    output.puts helper
  end

  command "add_goat" do |arg|
    @goats ||= []
    raise InvalidGoatError if @goats.size > settings.max_goats
    @goats << Goat.new
  end

end