You can run the async code by importing AsyncQStash from qstash and awaiting the methods.

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Get all events with pagination using cursor

Since there can be a large number of events, they are paginated. You can go through the results using the cursor. 
from qstash import QStash

client = QStash("<QSTASH-TOKEN>")

all_events = []
cursor = None
while True:
    res = client.event.list(cursor=cursor)
    all_events.extend(res.events)
    cursor = res.cursor
    if cursor is None:
        break