# File lib/cucumber/formatter/usage.rb, line 13
      def initialize(step_mother, path_or_io, options)
        @step_mother = step_mother
        @io = ensure_io(path_or_io, "usage")
        @options = options
        @stepdef_to_match = Hash.new{|h,stepdef_key| h[stepdef_key] = []}
      end