[IOS-XR] Parser for "show isis statistics" does not work

[ChristopherJHart]

Sample CLI output:

RP/0/RSP0/CPU0:R5#show isis statistics
Wed Apr 10 10:58:18.269 EDT

IS-IS 64512 statistics:
    Fast PSNP cache (hits/tries): 91099/146551
    Fast CSNP cache (hits/tries): 5/30
    Fast CSNP cache updates: 50
    LSP checksum errors received: 0
    LSP Dropped: 0
    SNP Dropped: 0
    UPD Max Queue size: 8
    UPD Queue size: 0
    Average transmit times and rates:
      Hello:          0 us          2/s
      CSNP:           0 us          0/s
      PSNP:           0 us          0/s
      LSP:            0 us          0/s
    Average process times and rates:
      Hello:          0 us          2/s
      CSNP:           0 us          0/s
      PSNP:           0 us          0/s
      LSP:            0 us          0/s
    Level-2:
      LSPs sourced (new/refresh): 50/16892
      IPv4 Unicast
        Total SPF calculations     : 7526
        Full SPF calculations      : 7508
        ISPF calculations          : 0
        Next Hop Calculations      : 11
        Partial Route Calculations : 7
        Periodic SPF calculations  : 7382
  Interface Loopback0:
  Interface TenGigE0/0/0/0.10:
    PTP Hellos (sent/rcvd)    : 760149/760205
    LSP Retransmissions       : 0
    LSP Peak Rate (out/in)    : 2/3
    Level-2 LSPs (sent/rcvd)  : 49222/53198
    Level-2 CSNPs (sent/rcvd) : 1/1
    Level-2 PSNPs (sent/rcvd) : 52991/49049
    Level-2 LSP Flooding Duplicates     : 7
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/0.20:
    PTP Hellos (sent/rcvd)    : 760305/760270
    LSP Retransmissions       : 1
    LSP Peak Rate (out/in)    : 1/8
    Level-2 LSPs (sent/rcvd)  : 4/12
    Level-2 CSNPs (sent/rcvd) : 1/1
    Level-2 PSNPs (sent/rcvd) : 4/3
    Level-2 LSP Flooding Duplicates     : 22912
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/1.10:
    PTP Hellos (sent/rcvd)    : 760320/760317
    LSP Retransmissions       : 0
    LSP Peak Rate (out/in)    : 0/0
    Level-2 LSPs (sent/rcvd)  : 0/0
    Level-2 CSNPs (sent/rcvd) : 1/1
    Level-2 PSNPs (sent/rcvd) : 0/0
    Level-2 LSP Flooding Duplicates     : 22919
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/1.20:
    PTP Hellos (sent/rcvd)    : 760370/760306
    LSP Retransmissions       : 0
    LSP Peak Rate (out/in)    : 7/0
    Level-2 LSPs (sent/rcvd)  : 8/0
    Level-2 CSNPs (sent/rcvd) : 1/1
    Level-2 PSNPs (sent/rcvd) : 0/1
    Level-2 LSP Flooding Duplicates     : 22918
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/2.10:
    PTP Hellos (sent/rcvd)    : 760223/760096
    LSP Retransmissions       : 4
    LSP Peak Rate (out/in)    : 6/2
    Level-2 LSPs (sent/rcvd)  : 42506/52552
    Level-2 CSNPs (sent/rcvd) : 4/4
    Level-2 PSNPs (sent/rcvd) : 52362/42363
    Level-2 LSP Flooding Duplicates     : 63
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/2.20:
    PTP Hellos (sent/rcvd)    : 760363/760234
    LSP Retransmissions       : 2
    LSP Peak Rate (out/in)    : 6/0
    Level-2 LSPs (sent/rcvd)  : 13/7
    Level-2 CSNPs (sent/rcvd) : 4/4
    Level-2 PSNPs (sent/rcvd) : 6/1
    Level-2 LSP Flooding Duplicates     : 29708
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/3.10:
    PTP Hellos (sent/rcvd)    : 760286/760231
    LSP Retransmissions       : 0
    LSP Peak Rate (out/in)    : 5/1
    Level-2 LSPs (sent/rcvd)  : 14/9
    Level-2 CSNPs (sent/rcvd) : 4/4
    Level-2 PSNPs (sent/rcvd) : 5/2
    Level-2 LSP Flooding Duplicates     : 29701
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/3.20:
    PTP Hellos (sent/rcvd)    : 760121/760359
    LSP Retransmissions       : 9
    LSP Peak Rate (out/in)    : 1/0
    Level-2 LSPs (sent/rcvd)  : 22/6
    Level-2 CSNPs (sent/rcvd) : 4/4
    Level-2 PSNPs (sent/rcvd) : 5/1
    Level-2 LSP Flooding Duplicates     : 29696
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/4.10:
    PTP Hellos (sent/rcvd)    : 414984/406274
    LSP Retransmissions       : 2
    LSP Peak Rate (out/in)    : 9/3
    Level-2 LSPs (sent/rcvd)  : 37830/10
    Level-2 CSNPs (sent/rcvd) : 5/5
    Level-2 PSNPs (sent/rcvd) : 0/37798
    Level-2 LSP Flooding Duplicates     : 3636
    Level-2 LSPs Arrival Time Throttled : 0
  Interface TenGigE0/0/0/4.20:
    PTP Hellos (sent/rcvd)    : 414927/406182
    LSP Retransmissions       : 0
    LSP Peak Rate (out/in)    : 8/4
    Level-2 LSPs (sent/rcvd)  : 11/40757
    Level-2 CSNPs (sent/rcvd) : 5/5
    Level-2 PSNPs (sent/rcvd) : 40495/3
    Level-2 LSP Flooding Duplicates     : 710
    Level-2 LSPs Arrival Time Throttled : 0

Traceback:

2024-04-29T13:18:08: %SCRIPT-ERROR: Traceback (most recent call last):
2024-04-29T13:18:08: %SCRIPT-ERROR:   File "/Users/chart2/Documents/Python/genieparser/src/genie/libs/parser/utils/unittests.py", line 580, in test_golden
2024-04-29T13:18:08: %SCRIPT-ERROR:     parsed_output = obj.parse(**arguments)
2024-04-29T13:18:08: %SCRIPT-ERROR:                     ^^^^^^^^^^^^^^^^^^^^^^
2024-04-29T13:18:08: %SCRIPT-ERROR:   File "src/genie/metaparser/_metaparser.py", line 342, in genie.metaparser._metaparser.MetaParser.parse
2024-04-29T13:18:08: %SCRIPT-ERROR:   File "src/genie/metaparser/_metaparser.py", line 322, in genie.metaparser._metaparser.MetaParser.parse
2024-04-29T13:18:08: %SCRIPT-ERROR:   File "src/genie/metaparser/util/schemaengine.py", line 419, in genie.metaparser.util.schemaengine.Schema.validate
2024-04-29T13:18:08: %SCRIPT-ERROR: genie.metaparser.util.exceptions.SchemaMissingKeyError: Missing keys: [['isis', '64512', 'transmit_time'], ['isis', '64512', 'process_time']]