code: def test_scalar_conversion(self, dtype):
      scalar = 1 + 1j if numpy.dtype(dtype).kind == "c" else 1
      x_1d = cupy.array(scalar).astype(dtype)
      assert complex(x_1d) == scalar
  
      x_0d = x_1d.reshape(())
      assert complex(x_0d) == scalar
  
imports: import unittest
  import numpy
  import pytest
  import cupy
  from cupy import testing
label_desc: Use image node_id 1 for calling the TestScalarConversion obj's underlying member method code with example usage: obj.test_scalar_conversion(dtype) without return types