def compute_refresh_time(self):
if self.z == <NUM_LIT:0>:<EOL><INDENT>self.z = <NUM_LIT><EOL><DEDENT>s = float(self.expiration) * (<NUM_LIT:1.0>/(self.nbr_bits)) * (<NUM_LIT:1.0>/(self.counter_init - <NUM_LIT:1> + (<NUM_LIT:1.0>/(self.z * (self.nbr_slices + <NUM_LIT:1>)))))<EOL>return s<EOL>
Compute the refresh period for the given expiration delay