parameters: (self)
docstring: The concrete regularization value for the process of growing the forest
          used in model building process.
docstring_summary: The concrete regularization value for the process of growing the forest
          used in model building process.
docstring_tokens: The concrete regularization value for the process of growing the forest used in model building process .
function: def sl2_(self):
          """
          The concrete regularization value for the process of growing the forest
          used in model building process.
          """
          if not hasattr(self, '_sl2'):
              raise NotFittedError(utils.NOT_FITTED_ERROR_DESC)
          else:
              return self._sl2
function_tokens: def sl2_ ( self ) : if not hasattr ( self , '_sl2' ) : raise NotFittedError ( utils . NOT_FITTED_ERROR_DESC ) else : return self . _sl2