class Cucumber::CucumberExpressions::Node

def to_hash
  hash = Hash.new
  hash["type"] = @type
  unless @nodes.nil?
    hash["nodes"] = @nodes.map { |node| node.to_hash }
  end
  unless @token.nil?
    hash["token"] = @token
  end
  hash["start"] = @start
  hash["end"] = @end
  hash
end