return results only containing text

I'm attempting to call the Google Calendar API and return results only containing a specific piece of text.

Using the following snippet:

    eventsResult = service.events().list(
        calendarId='primary', timeMin=start_time, timeMax=end_time, singleEvents=True,
        orderBy='startTime').execute()
    events = eventsResult.get('items', [])

    if not events:
        print('No upcoming events found.')
    for event in events:
        start = event['start'].get('dateTime', event['start'].get('date'))
        print(start, event['summary'])

I receive results in the following format:

(u'2018-02-16', u'Foo')
(u'2018-02-16T10:00:00-07:00', u'Bar')

I am attempting to add logic to limit results to those lines containing 'Foo'

    if not events:
        print('No upcoming events found.')
    for event in events:
        start = event['start'].get('dateTime', event['start'].get('date'))
        if "Foo" in event:
            print(start, event['summary'])

Returns nothing.

Do I need to place the if "Foo" in event: logic elsewhere? Am I misunderstanding the usage?