code: def test_require_empty_requirements(self, dtype):
      x = cupy.zeros((2, 3, 4), dtype)
      x = cupy.require(x, dtype, [])
      assert x.flags["C_CONTIGUOUS"]
  
imports: import unittest
  import pytest
  import numpy
  import cupy
  from cupy import testing
label_desc: Use image node_id 14 for calling the TestKind obj's underlying member method code with example usage: obj.test_require_empty_requirements(dtype) without return types