text: import inspect
  import sklearn.linear_model
  import json
  mth = getattr(sklearn.linear_model.LinearRegression,'__init__')
  
  # mth = getattr(sklearn.linear_model.LinearRegression, 'fit')
  
  sig = inspect.signature(mth)
  
  params = sig.parameters
  
  inspect.Parameter
  
  for k, v in params.items():
      print("{} --> {} {} {}".format(v.annotation, v.name, v.default, v.kind))
      print(type(v.default))
  
  print(type(sig))