python cookiecutter : Is there a way to make an input variable mandatory in cookiecutter?

I have a cookiecuttern json like below

{
    "variable1": "Test variable 1 - mandatory",
    "variable2": "Test variable 2"
}

Is there any way to specify to the user of this cookiecuter that this field variable1 is mandatory? I dont want the user to proceed to entering a value for variable2 without entering a value for variable1