SWI-Prolog -- spy/1

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AllApplicationManualNameSummaryHelp

Documentation
- Reference manual
  - Built-in Predicates
    - Debugging and Tracing Programs
      - trace/0
      - tracing/0
      - notrace/0
      - trace/1
      - trace/2
      - notrace/1
      - debug/0
      - nodebug/0
      - debugging/0
      - spy/1
      - nospy/1
      - nospyall/0
      - leash/1
      - visible/1
      - unknown/2
      - style_check/1
- Packages

e debugger. See dt class="pubdef">[det]

ClioPatria (version V3.1.1-42-gd6a756b-DIRTY)