def reset(self):
    self.chain = ''
    self.starting_points = np.zeros(self.num_miners, dtype=np.int64)
    self.hidden_lengths = np.zeros(self.num_miners, dtype=np.int64)
def reset(self):
    self.chain = 
    self.starting_points = np.zeros(self.num_miners, dtype=np.int64)
    self.hidden_lengths = np.zeros(self.num_miners, dtype=np.int64)