# File lib/webmock/util/query_mapper.rb, line 40
      def query_to_values(query, options={})
        return nil if query.nil?
        query.force_encoding('utf-8') if query.respond_to?(:force_encoding)

        options[:notation] ||= :subscript

        if ![:flat, :dot, :subscript, :flat_array].include?(options[:notation])
          raise ArgumentError,
                'Invalid notation. Must be one of: ' +
                '[:flat, :dot, :subscript, :flat_array].'
        end

        empty_accumulator = :flat_array == options[:notation] ? [] : {}

        query_array = collect_query_parts(query)

        query_hash = collect_query_hash(query_array, empty_accumulator, options)

        normalize_query_hash(query_hash, empty_accumulator, options)
      end