def METHOD_NAME(tas_cubes):
    """Test ``fix_metadata`` for ``tas``."""
    vardef = get_var_info('CMIP6', 'Amon', 'tas')
    fix = Tas(vardef)
    fixed_cubes = fix.fix_metadata(tas_cubes)
    assert fixed_cubes[0].coord('latitude') == fixed_cubes[1].coord('latitude')