parameters: (existing, new, params=None)
docstring: Create a new model by copying an existing one.
  
      Parameters
      ----------
      existing : str
          Name of existing model
      new : str
          Name of the copied model
      params : dict, optional
          Default parameters assigned to the copy. Not provided parameters are
          taken from the existing model.
docstring_summary: Create a new model by copying an existing one.
docstring_tokens: Create a new model by copying an existing one .
function: def CopyModel(existing, new, params=None):
      """Create a new model by copying an existing one.
  
      Parameters
      ----------
      existing : str
          Name of existing model
      new : str
          Name of the copied model
      params : dict, optional
          Default parameters assigned to the copy. Not provided parameters are
          taken from the existing model.
  
      """
  
      model_deprecation_warning(existing)
  
      if params is not None:
          sps(params)
          sr("/%s /%s 3 2 roll CopyModel" % (existing, new))
      else:
          sr("/%s /%s CopyModel" % (existing, new))
function_tokens: def CopyModel ( existing , new , params = None ) : model_deprecation_warning ( existing ) if params is not None : sps ( params ) sr ( "/%s /%s 3 2 roll CopyModel" % ( existing , new ) ) else : sr ( "/%s /%s CopyModel" % ( existing , new ) )