class_docstr: An abstract base class for a model that implements lipschitz
  constants
  
  Parameters
  ----------
  dtype : `{'float64', 'float32'}`, default='float64'
      Type of the arrays used. This value is set from model and prox dtypes.
  
  Notes
  -----
  This class should be not used by end-users, it is intended for
  development only.
code: def __init__(self):
      Model.__init__(self)
      self._ready_lip_best = False
      self._lip_best = None
  
file_path: tick/tick/base_model/model_lipschitz.py
imports: from abc import abstractmethod
  from .None import Model
label_desc: Use image node_id 1 to create a new ModelLipschitz object from inherited base classes: Model with example: obj = ModelLipschitz()