code: def test_nanmean_with_nan_float(self, xp, dtype):
      a = testing.shaped_random(self.shape, xp, dtype)
  
      if a.dtype.kind not in "biu":
          a[1, :] = xp.nan
          a[:, 3] = xp.nan
  
      return xp.nanmean(a, axis=self.axis, keepdims=self.keepdims)
  
imports: import math
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 2 for calling the TestNanMean obj's underlying member method code with example usage: obj.test_nanmean_with_nan_float(xp, dtype) and returns: xp