code: def test_copysign(
      dtype_x1_x2, test_flags, backend_fw, fn_name, on_device
  ):
      (x1_dtype, x2_dtype), (x1, x2) = dtype_x1_x2
      helpers.test_function(
          input_dtypes=[x1_dtype, x2_dtype],
          test_flags=test_flags,
          on_device=on_device,
          backend_to_test=backend_fw,
          fn_name=fn_name,
          x1=x1,
          x2=x2,
      )
  
imports: from hypothesis import strategies
  import ivy
  import ivy_tests.test_ivy.helpers
  from ivy_tests.test_ivy.helpers import handle_test
label_desc: Use image node_id 12 for calling a global function with example usage: test_copysign(dtype_x1_x2, test_flags, backend_fw, fn_name, on_device) without return types