I can get a primitive variable or only its value from in the handler function

AT:

• I can use the `task.variables` object to have access to the variables of the task through getters (get and getTyped).
• I can call get(key) to get the value of variable corresponding to key.
• I can call getTyped(key) to get the full variable corresponding to key.
• I can call getAll() to get the values of all variables.
• I can call getAllTyped() to get all variables.