From string to int

[armygrad24 (Marco Zani)]

in the following what does pm stand for

pm.environment.set('test-tempId', tempId);

How is the response called i.e the call that gets the data is called Request

this is the Test script now

const jsonData = pm.response.json();

const tempId = jsonData['Content']['2020-06-12']['15'][8]['Id'];
parseInt(pm.environment.get('tempId'));
pm.environment.set('test-tempId', tempId);