feat: implement real

[HadeerArafa]

PR Description

Related Issue

Close #23624

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• Did you add a function?
• Did you add the tests?
• Did you run your tests and are your tests passing?
• Did pre-commit not fail on any check?
• Did you follow the steps we provided?

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[HadeerArafa]

sometimes all the tests pass and other times I get this error
and I don't know why fn is sometime equal to ivy.array([]) instead of <function real at 0x...............>
do you have any ideas? @illia-bab @zhumakhan

backend_to_test = 'numpy', fn = ivy.array(0), test_compile = False
precision_mode = False, args = (), kwargs = {}

    def get_ret_and_flattened_np_array(
        backend_to_test: str, fn, *args, test_compile=False, precision_mode=False, **kwargs
    ):
        """
        Run func with args and kwargs.
    
        Return the result along with its flattened version.
        """
        fn = compiled_if_required(
            backend_to_test, fn, test_compile=test_compile, args=args, kwargs=kwargs
        )
        with BackendHandler.update_backend(backend_to_test) as ivy_backend:
            with ivy_backend.PreciseMode(precision_mode):
>               ret = fn(*args, **kwargs)
E               TypeError: 'Array' object is not callable
E               Falsifying example: test_real(
E                   backend_fw='numpy',
E                   on_device='cpu',
E                   dtype_and_x=(['int64'], [array(0, dtype=int64)]),
E                   test_flags=FunctionTestFlags(
E                       ground_truth_backend='tensorflow',
E                       num_positional_args=1,
E                       with_out=False,
E                       instance_method=True,
E                       test_gradients=False,
E                       test_compile=False,
E                       as_variable=[False],
E                       native_arrays=[False],
E                       container=[False],
E                       precision_mode=False,
E                   ),
E                   fn_name='real',
E               )

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Thank you for this PR, here is the CI results:

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This pull request does not result in any additional test failures. Congratulations!