class_docstr: Initialize IVEstimator object.
  
  Parameters
  ----------
  model: pgmpy.models.SEM
      The model for which estimation need to be done.
  
  Examples
  --------
class_docstr_tok: ["Initialize","IVEstimator","object",".","Parameters","--","--","--","--","--","model",":","pgmpy.models.SEM","The","model","for","which","estimation","need","to","be","done",".","Examples","--","--","--","--"]
code: def __init__(self, model):
      self.model = model
  
file_path: pgmpy/pgmpy/estimators/SEMEstimator.py
imports: import numpy
  import pandas
  import statsmodels.api
  import torch
  from pgmpy import config
  from pgmpy.models import SEM, SEMAlg, SEMGraph
  from pgmpy.utils import optimize, pinverse
label_desc: Use image node_id 1 to create a new IVEstimator object  with example: obj = IVEstimator(model)