(self, expiration)
Create a timer that expires at `expiration` (UTC datetime)
Create a timer that expires at `expiration` (UTC datetime)
Create a timer that expires at expiration ( UTC datetime )
def __init__(self, expiration):
        'Create a timer that expires at `expiration` (UTC datetime)'
        self.expiration = expiration
def __init__ ( self , expiration ) : self . expiration = expiration