code: def __init__(self, endog):
      super().__init__(endog, k_states=1, initialization="diffuse")
  
      self["design", 0, 0] = 1
      self["transition", 0, 0] = 1
      self["selection", 0, 0] = 1
  
file_path: statsmodels/examples/python/statespace_concentrated_scale.py
imports: import numpy
  import pandas
  import statsmodels.api
label_desc: Use image node_id 1 to create a new LocalLevel object from inherited base classes: sm.tsa.statespace with example: obj = LocalLevel(endog)