exec pint parse 'rate(http_requests_total[5m] offset -1w)'
cmp stdout stdout.txt
! stderr .

-- stdout.txt --
++ node: rate(http_requests_total[5m] offset -1w)
  Call:
    * Type: vector
    * Func: rate
    * Args: http_requests_total[5m] offset -1w
      ++ node: http_requests_total[5m] offset -1w
        Expressions:
          ++ node: http_requests_total[5m] offset -1w
            MatrixSelector:
              * Type: matrix
              * VectorSelector: http_requests_total offset -1w
              * Range: 5m0s
