code: def __init__(self, dim_x, dim_z):
      self.dim_z = dim_z
      self.x = np.zeros((dim_x, 1))
  
imports: from abc import ABC, abstractmethod
  import numpy
  from filterpy.kalman import KalmanFilter
label_desc: Use image node_id 1 to create a new NoFilter object  with example: obj = NoFilter(dim_x, dim_z)