Alternatives to "psycopg2.extras.execute_values" and "psycopg2.extras.execute_batch"

I am trying to adapt this gist
https://gist.github.com/hakib/7e723d2c113b947f7920bf55737e4d16
which uses psycopg2 to psycopg v3.

It seems that the `extras` package is no longer present in v3. 
Are there alternatives for these functions
```python
psycopg2.extras.execute_values()
psycopg2.extras.execute_batch()
```
?
