Gathering options using a block

example.rb

# config/initializers/tumbz_init.rb
Tumbz.configure do |config|
  config.access_key = "foo"
  config.access_secret = "bar"
end

# lib/tumbz.rb
module Tumbz
  def self.configure
    @options = OpenStruct.new
    yield(@options)

    # @options.access_key # => "foo"
    # @options.access_secret # => "bar"
  end
end