Script does not provide >81 argument in response

[Astakhin]

For example:

from open_linkedin_api import Linkedin
from requests.cookies import RequestsCookieJar

cookies = RequestsCookieJar()

cookies.set('li_at', 'TOPSECRET', domain='www.linkedin.com')
cookies.set('JSESSIONID', 'TOPSECRET', domain='www.linkedin.com')

api = Linkedin(cookies=cookies, username='example@gmail.com', password='')

connections = api.get_profile_connections('TOPSECRET')

connections_count = len(connections)
print(f"Connections summary: {connections_count}")

This script displays amount of user's connections, but when it's >=81 it will be always 81

If user have 80, script will display 80 [GOOD]
If user have 100 connections, script will display 81 [NOT GOOD]
If user have 500 connections, it still be 81 [NOT GOOD]

It's rate-limit from LinkedIn or it's software issue? Or something else?