code: def z_normalise_series_2d(X):
      """Numba series normalization function for a 2d numpy array.
  
      Parameters
      ----------
      X : 2d numpy array
          A 2d numpy array of values
  
      Returns
      -------
      arr : 2d numpy array
          The normalised series
      """
      arr = np.zeros(X.shape)
      for i in range(X.shape[0]):
          arr[i] = z_normalise_series(X[i])
      return arr
  
file_path: sktime/sktime/utils/numba/general.py
imports: from sktime.utils.validation._dependencies import _check_soft_dependencies
  import numpy
  import sktime.utils.numba.stats
  from sktime.utils.numba.njit import njit
label_desc: Use image node_id 5 for calling a global function with example usage: z_normalise_series_2d(X) and returns: arr