class_docstr: Autoregressive working covariance for QIF regression.
code: def __init__(self):
      self.num_terms = 3
  
imports: import numpy
  from collections import defaultdict
  import statsmodels.base.model
  from statsmodels.genmod import families
  from statsmodels.genmod.generalized_linear_model import GLM
  from statsmodels.genmod.families import links
  from statsmodels.genmod.families import varfuncs
  import statsmodels.regression.linear_model
  import statsmodels.base.wrapper
  from statsmodels.tools.decorators import cache_readonly
label_desc: Use image node_id 1 to create a new QIFAutoregressive object from inherited base classes: QIFCovariance with example: obj = QIFAutoregressive()