def METHOD_NAME():
    ccd_data = ccd_data_func()
    # If nothing is supplied for the add_keyword argument then the following
    # should happen:
    # + A key named func.__name__ is created, with
    # + value that is the list of arguments the function was called with.
    bias = CCDData(np.zeros_like(ccd_data.data), unit="adu")
    result = subtract_bias(ccd_data, bias)
    assert "subtract_bias" in result.header
    assert result.header['subtract_bias'] == (
        'subbias', 'Shortened name for ccdproc command')
    assert result.header['subbias'] == "ccd=<CCDData>, master=<CCDData>"
    result = create_deviation(ccd_data, readnoise=3 * ccd_data.unit)
    assert result.header['create_deviation'] == (
        'creatvar', 'Shortened name for ccdproc command')
    assert ("readnoise=" + str(3 * ccd_data.unit) in
            result.header['creatvar'])