[tor-bugs] #22734 [Metrics/metrics-lib]: update metrics-lib examples

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#22734: update metrics-lib examples
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     Reporter:  iwakeh               |      Owner:  metrics-team
         Type:  enhancement          |     Status:  new
     Priority:  Medium               |  Milestone:  metrics-lib 2.0.0
    Component:  Metrics/metrics-lib  |    Version:
     Severity:  Normal               |   Keywords:
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
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 sibling ticket of #22295

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22734>
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