code: def _into_pieces(self, n, pad=4):
      res = []
      while len(res) < pad:
          res.append(np.array(n, dtype=self._dtype))
          n >>= np.dtype(self._dtype).itemsize * 8
      assert n == 0
      return tuple(res)
  
imports: import numpy
  import pytest
  import scipy.stats
  import torch
  import triton
  import triton.language
label_desc: Use image node_id 3 for calling the CustomPhilox4x obj's underlying member method code with example usage: obj._into_pieces(n, pad) and returns: tuple