magento2 – magic method unsItemName ()

I'm trying to use an undefined magic method to remove a row from the table.
Here is the line of code for the execute method of my CLi command.

$ item-> unsEquipmentName ($ input-> getArgument (self :: INPUT_KEY_NAME));

What do I need to add more for this command to work?
The command is saved correctly when I check it in the list of commands and it runs under Bash without error, but nothing changes in the database.

How should I close my execute method.