def __insert_element_bucket(self, variance, value, node):
    node.insert_bucket(value, variance)
    self.bucket_number += 1
    if (self.bucket_number > self.bucket_num_max):
        self.bucket_num_max = self.bucket_number
def __insert_element_bucket(self, variance, value, node):
    node.insert_bucket(value, variance)
    self.bucket_number += 1
    if (self.bucket_number > self.bucket_num_max):
        self.bucket_num_max = self.bucket_number