educative.io

Question about getUserFeed(...)?

getUserFeed(api_dev_key, user_id, since_id, count, max_id, exclude_replies)

in this function there are two parameters that I don’t know their jobs, since_id and max_id.
I did not get your explanation in the design are these dates? like getting post from date X up to date Y. I don’t get why the data type is number?