Define a class TaskCalculator ( ) to keep track of how much time a day's tasks will likely take. The class has a single attribute, daily tasks, which is created as an empty dictionary using the classes' initializer function It will then have two methods: add_task and calculate_time. add_task (task, duration) : input parameters task (a string) duration (an int or float describing the number of hours) this method will add an entry to the daily tasks dictionary, using task as the key and duration as the value calculate_time(): no input parameters the code will then determine, given the values in the instance attribute daily_tasks, how long the daily_tasks are estimated to take by summing up the dictionary values the number of hours estimated should be returned from this method if no tasks are stored then the return value should be 0 Activate Mi