code: def _check_array(self, X):
      return check_array(
          X,
          accept_dask_dataframe=True,
          accept_unknown_chunks=True,
          preserve_pandas_dataframe=True,
      )
  
imports: import dask
  import dask.array
  import dask.dataframe
  import numpy
  import sklearn.base
  from sklearn.utils.validation import check_is_fitted
  from ..base import ClassifierMixin, RegressorMixin
  from ..utils import check_array
label_desc: Use image node_id 2 for calling the BlockwiseBase obj's underlying member method code with example usage: obj._check_array(X) and returns: check_array