How can we define a random string and date variable in yaml file like file/randomnumber/counter/constant Variables?

Hi,

I am preparing neoload project as test as a code where i am defining everything in yaml file.

But i am facing issue with defining variables like Date and random string in yaml file for my project.

Is there any implementation for these two variables in yaml file like we have for file/counter/random number/constant?

Thanks,
Abhishek