need to implement the function below and can only use the libraries that have been imported which is datetime. Would a loop be necessary to implement the function if not datetime then do this elif datetime then do this?

import datetime

def is_before(d1,d2): """ Returns True if event d1 happens before d2. Values d1 and d2 can EITHER be date objects or datetime objects.If a date object, assume that it happens at midnight of that day. Parameter d1: The first event Precondition: d1 is EITHER a date object or a datetime object Parameter d2: The first event Precondition: d2 is EITHER a date object or a datetime object """ # HINT: Check the type of d1 or d2. If not a datetime, convert it for comparison pass # Implement this function