line 32 of [PROJECT_ROOT]/app/services/calendar_hub/shared/http_client.rb: CalendarHub::Shared::HttpClient#get_with_caching
line 7 of [PROJECT_ROOT]/app/services/calendar_hub/ingestion/enhanced_ics_adapter.rb: CalendarHub::Ingestion::EnhancedICSAdapter#fetch_events_with_change_detection
line 37 of [PROJECT_ROOT]/app/services/calendar_hub/ingestion/enhanced_ics_adapter.rb: CalendarHub::Ingestion::EnhancedICSAdapter#has_changes?