code: def gen_key(self):
      # Get test name
      caller_name = inspect.stack()[1][3]
      return f"{self.__class__.__name__}/{caller_name}/{fake.unique.slug()}"
  
imports: import inspect
  from faker import Faker
label_desc: Use image node_id 1 for calling the BaseE2ETest obj's underlying member method code with example usage: obj.gen_key() and returns: self, str, caller_name, str, fake