code: def test_label(self, xp, scp):
      size = int(pow(self.size, 1 / self.ndim))
      x_shape = range(size, size + self.ndim)
      x = xp.zeros(x_shape, dtype=self.x_dtype)
      x[testing.shaped_random(x_shape, xp) < self.density] = 1
      if self.connectivity is None:
          structure = None
      else:
          structure = _generate_binary_structure(
              self.ndim, self.connectivity
          )
      if self.o_type == "ndarray" and self.output is not None:
          output = xp.empty(x_shape, dtype=self.output)
          num_features = scp.ndimage.label(
              x, structure=structure, output=output
          )
          return output
      labels, num_features = scp.ndimage.label(
          x, structure=structure, output=self.output
      )
      return labels
  
imports: import sys
  import warnings
  import numpy
  import pytest
  import cupy
  from cupy.cuda import runtime
  from cupy import testing
  from cupy import _util
  from cupy._core import _accelerator
  import cupyx.scipy.ndimage
label_desc: Use image node_id 1 for calling the TestLabel obj's underlying member method code with example usage: obj.test_label(xp, scp) and returns: labels, output