With this brick, you can rename specified columns the way you need them to be called.
You select as many columns to rename as you want by clicking '+'. Then you just need to specify the column's new name.
Input variable: column_names = ['Name', 'Surnaaaaaame', 'Age']
Renaming 'Surnaaaaaame' to 'Surname'
Output variable: column_names = ['Name', 'Surname', 'Age']