def METHOD_NAME():
    config = get_fv3config()
    config["radiation_scheme"] = {"kind": "python"}
    diagnostics = [
        {
            "name": "state_after_timestep.zarr",
            "chunks": {"time": 2},
            "times": {"frequency": 900, "kind": "interval"},
            "variables": [
                diagnostic.name
                for diagnostic in RADIATION_DIAGNOSTICS
                if diagnostic.is_flux
            ],
        }
    ]
    diagnostics.append(
        {
            "name": "radiation_diagnostics.zarr",
            "chunks": {"time": 2},
            "times": {"frequency": 900, "kind": "interval"},
            "variables": [
                diagnostic.python_name for diagnostic in RADIATION_DIAGNOSTICS
            ],
        }
    )
    config["diagnostics"] = diagnostics
    return config