Showing error of y fixture not found at line 271

[adarshkesarwani006]

Hello,
I am getting an issue while running your code at line 271
below is the exact error:

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test setup failed
file C:\Users\manas pc\Desktop\evanik reports\Sales_Forecasting.py, line 271
def exp_smoothing(y_train,
E fixture 'y' not found

  available fixtures: _session_faker, _verify_url, base_url, browser, browser_channel, browser_context_args, browser_name, browser_type, browser_type_launch_args, cache, capfd, capfdbinary, caplog, capsys, capsysbinary, class_mocker, context, cov, delete_output_dir, device, doctest_namespace, faker, is_chromium, is_firefox, is_webkit, launch_browser, mocker, module_mocker, monkeypatch, no_cover, package_mocker, page, playwright, pytestconfig, record_property, record_testsuite_property, record_xml_attribute, recwarn, session_mocker, tmp_path, tmp_path_factory, tmpdir, tmpdir_factory
  use 'pytest --fixtures [testpath]' for help on them.

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Kindly resolve this.