code: def test_shfl_width(self):
      @jit.rawkernel()
      def f(a, b, w):
          laneId = jit.threadIdx.x & 0x1F
          value = jit.shfl_sync(
              0xFFFFFFFF, b[jit.threadIdx.x], 0, width=w
          )
          b[laneId] = value
  
      c = cupy.arange(32, dtype=cupy.int32)
      for w in (2, 4, 8, 16, 32):
          a = cupy.int32(100)
          b = cupy.arange(32, dtype=cupy.int32)
          f[1, 32](a, b, w)
          c[c % w != 0] = c[c % w == 0]
          assert (b == c).all()
  
imports: import numpy
  import pytest
  import cupy
  from cupyx import jit
  from cupy import testing
  from cupy.cuda import device
  from cupy.cuda import runtime
label_desc: Use image node_id 40 for calling the TestRaw obj's underlying member method code with example usage: obj.test_shfl_width() without return types