AWS CloudSearch with pages using cursor (can only go forward, not back)

searchcursor.py

import boto3

# Returned 'cursor' can be of seemingly any length, and changes on each return

cs = boto3.client('cloudsearchdomain',
                  endpoint_url='https://search-thing-xxx.us-east-1.cloudsearch.amazonaws.com',
                  region_name='us-east-1')
size = 4
cursor = 'initial'
while True:
    ret = cs.search(query='nasa', cursor=cursor, size=size)
    hit = ret['hits']['hit']
    if not hit:
        break
    print('{:32} {}'.format(cursor[-32:], ' | '.join([h['id'] for h in hit])))
    cursor = ret['hits']['cursor']