code: def test_syncwarp_mask(self):
      @jit.rawkernel()
      def f(x, m):
          laneId = jit.threadIdx.x & 0x1F
          if laneId < m:
              x[laneId] = 1
              jit.syncwarp(mask=(1 << m) - 1)
  
      for mask in (2, 4, 8, 16, 32):
          x = cupy.zeros((32,), dtype=numpy.int32)
          y = cupy.zeros_like(x)
          f((1,), (32,), (x, mask))
          y[:mask] += 1
          assert bool((x == y).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 21 for calling the TestRaw obj's underlying member method code with example usage: obj.test_syncwarp_mask() without return types