# File lib/cucumber/parser/feature.rb, line 1706
      def _nt_close_py_string
        start_index = index
        if node_cache[:close_py_string].has_key?(index)
          cached = node_cache[:close_py_string][index]
          @index = cached.interval.end if cached
          return cached
        end

        i0, s0 = index, []
        r1 = _nt_eol
        s0 << r1
        if r1
          s2, i2 = [], index
          loop do
            r3 = _nt_space
            if r3
              s2 << r3
            else
              break
            end
          end
          r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
          s0 << r2
          if r2
            if has_terminal?('"""', false, index)
              r4 = instantiate_node(SyntaxNode,input, index...(index + 3))
              @index += 3
            else
              terminal_parse_failure('"""')
              r4 = nil
            end
            s0 << r4
            if r4
              r5 = _nt_white
              s0 << r5
            end
          end
        end
        if s0.last
          r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
          r0.extend(ClosePyString0)
          r0.extend(ClosePyString1)
        else
          @index = i0
          r0 = nil
        end

        node_cache[:close_py_string][start_index] = r0

        r0
      end