def METHOD_NAME(es: object) -> Dict[OperatorName, Dict[str, Any]]:
    """Given a loaded yaml representing a list of operators, extract the
    kernel key related fields indexed by the operator name.
    """
    fields: Dict[OperatorName, Dict[str, Any]] = defaultdict(dict)
    for ei in es:  # type: ignore[attr-defined]
        funcs = ei.get("func")
        assert isinstance(funcs, str), f"not a str: {funcs}"
        namespace_helper = NamespaceHelper.from_namespaced_entity(
            namespaced_entity=funcs, max_level=1
        )
        opname = FunctionSchema.parse(namespace_helper.entity_name).name
        for field in ET_FIELDS:
            if (value := ei.get(field)) is not None:
                fields[opname][field] = value
    return fields