class_docstr: DBStream Micro-cluster class
class_docstr_tok: ["DBStream","Micro-cluster","class"]
code: def __init__(self, x=None, last_update=None, weight=None):
      self.center = x
      self.last_update = last_update
      self.weight = weight
  
imports: from __future__ import annotations
  import collections
  import copy
  import math
  from abc import ABCMeta
  from river import base, utils
label_desc: Use image node_id 1 to create a new DBSTREAMMicroCluster object  with example: obj = DBSTREAMMicroCluster(x, last_update, weight)