# File lib/puppet/simple_graph.rb, line 27
27:         def adjacent(options)
28:             direction = options[:direction] || :out
29:             options[:type] ||= :vertices
30: 
31:             if options[:type] == :edges
32:                 return send(direction.to_s + "_edges")
33:             end
34: 
35:             return @adjacencies[direction].keys.reject { |vertex| @adjacencies[direction][vertex].empty? }
36:         end