could not find function "clean_tweets"

[rmoor]

### Problem

I managed to extract tweets from twitter. But the clean_tweets function seems not existing.

rt <- search_tweets ("#Monday", n = 100, include_rts = FALSE)

Searching for tweets...
Finished collecting tweets!

rt = clean_tweets(rt)
Error in clean_tweets(rt) : could not find function "clean_tweets"

### rtweet version

packageVersion("rtweet")
[1] ‘0.6.8’

[llrs]

I can't reproduce the problem. Perhaps it is a function that was exported at some point and it is no longer exported?