SKALE IMA Bridge - how get private keys?

Hi Skale community! I’m trying to go through the steps in the docs here: Development with IMA-SDK :: SKALE Network Documentation

In step 3, we are supposed to Copy the .env template and add your accounts. However, when I enter the file in vim in the terminal as expected, there are no private keys of course.

How do I get these strings of characters to put in the following place:



Any clarity would be really appreciated!