Kusto Query Language tips: Loop through array of JSON objects and extract info in the same row

gistfile1.txt

let FindString = "Event search string";
let Events = ContainerLog
| where LogEntry has FindString
| extend json=parse_json(LogEntry)
| extend events=json.context.events
| project TimeGenerated, events, toint(totalElapsedTime=json.context.total_elapsed_time_in_milliseconds);
Events
| mv-apply event=events on (
    extend p=pack(tostring(event.event_name), event.elapsed_time_in_milliseconds)
    | summarize bag=make_bag(p)
) | evaluate bag_unpack(bag)
| project-away events