code: def _validate_targets(self, y, dtype):
      self.class_weight_ = None
      self.classes_ = None
      return _column_or_1d(y, warn=True).astype(dtype, copy=False)
  
imports: from abc import ABCMeta, abstractmethod
  from enum import Enum
  from numbers import Number, Real
  import numpy
  from scipy import sparse
  from sklearn.base import BaseEstimator
  from daal4py.sklearn._utils import sklearn_check_version
  from onedal import _backend
  from ..common._estimator_checks import _check_is_fitted
  from ..common._mixin import ClassifierMixin, RegressorMixin
  from ..common._policy import _get_policy
  from ..datatypes import from_table, to_table
  from ..utils import _check_array, _check_n_features, _check_X_y, _column_or_1d, _validate_targets
label_desc: Use image node_id 3 for calling the BaseSVM obj's underlying member method code with example usage: obj._validate_targets(y, dtype) and returns: _column_or_1d