code: def column_or_1d(y, *, dtype=None, warn=False):
      """Ravel column or 1d numpy array, else raises an error.
  
      Parameters
      ----------
      y : array-like
         Input data.
  
      dtype : data-type, default=None
          Data type for `y`.
  
          .. versionadded:: 1.2
  
      warn : bool, default=False
         To control display of warnings.
  
      Returns
      -------
      y : ndarray
         Output data.
  
      Raises
      ------
      ValueError
          If `y` is not a 1D array or a 2D array with a single row or column.
  
      Examples
      --------
      >>> from sklearn.utils.validation import column_or_1d
      >>> column_or_1d([1, 1])
      array([1, 1])
      """
      xp, _ = get_namespace(y)
      y = check_array(
          y,
          ensure_2d=False,
          dtype=dtype,
          input_name="y",
          force_all_finite=False,
          ensure_min_samples=0,
      )
  
      shape = y.shape
      if len(shape) == 1:
          return _asarray_with_order(
              xp.reshape(y, (-1,)), order="C", xp=xp
          )
      if len(shape) == 2 and shape[1] == 1:
          if warn:
              warnings.warn(
                  (
                      "A column-vector y was passed when a 1d array was"
                      " expected. Please change the shape of y to "
                      "(n_samples, ), for example using ravel()."
                  ),
                  DataConversionWarning,
                  stacklevel=2,
              )
          return _asarray_with_order(
              xp.reshape(y, (-1,)), order="C", xp=xp
          )
  
      raise ValueError(
          "y should be a 1d array, got an array of shape {} instead.".format(
              shape
          )
      )
  
imports: import numbers
  import operator
  import sys
  import warnings
  from contextlib import suppress
  from functools import reduce, wraps
  from inspect import Parameter, isclass, signature
  import joblib
  import numpy
  import scipy.sparse
  from ..None import get_config
  from ..exceptions import DataConversionWarning, NotFittedError, PositiveSpectrumWarning
  from ..utils._array_api import _asarray_with_order, _is_numpy_namespace, get_namespace
  from ..utils.fixes import ComplexWarning, _preserve_dia_indices_dtype
  from ._isfinite import FiniteStatus, cy_isfinite
  from .fixes import _object_dtype_isnan
label_desc: Use image node_id 24 for calling a global function with example usage: column_or_1d(y) and returns: _asarray_with_order, _asarray_with_order