How to get multiple ID's live thumbnail from fetch URL Helix?

Hi. i would like to API return me multiple ID’s live thumbnail that i define in URL. but i don’t know how to type it in URL. what’s the Helix Url for this?

Sounds like you want to look up 2 or more live streams at the same time

here is an example

https://api.twitch.tv/helix/streams?user_id=26490481&user_id=124425627

thanks