# File lib/i18n/interpolate/ruby.rb, line 14
    def interpolate(string, values)
      raise ReservedInterpolationKey.new($1.to_sym, string) if string =~ RESERVED_KEYS_PATTERN
      raise ArgumentError.new('Interpolation values must be a Hash.') unless values.kind_of?(Hash)
      interpolate_hash(string, values)
    end