def find_free(events):
"""
uses the not free events to find the free blocks
:param events: dict of busy events
:return: dict of free times
"""
#pass in the event list
agenda = Agenda.from_dict(events)
app.logger.debug("Find Free Events")
#Just get all the block in questions info
start_date = arrow.get(flask.session['begin_date']).date()
end_date = arrow.get(flask.session['end_date']).date()
start_time = arrow.get(flask.session['start_time']).time()
end_time = arrow.get(flask.session['end_time']).time()
#Make two arrow objects for freeblock query
begin = arrow.Arrow(start_date.year, start_date.month, start_date.day, start_time.hour, start_time.minute)
end = arrow.Arrow(end_date.year, end_date.month, end_date.day, end_time.hour, end_time.minute)
free = Appt(begin, end, "Free")
free_time = agenda.complement(free)
app.logger.debug(free_time.list_convert())
#convert to dict for later use
return free_time.list_convert()
