tcn.lms.element.v1alpha1.Element.Process.FieldIndex(FieldIndex)

FieldIndex represents a path to access a field in a record, supporting both
top-level and nested field access used in FilterCheck. The index array represents the path to
the field, where the first element is the top-level field name and subsequent
elements represent nested field paths. For example, ["user", "address", "city"]
would access the city field within the address object within the user object.

{
    "datetime": {
        "years": 0,
        "weeks": 0,
        "days": 0,
        "hours": 0,
        "minutes": 0,
        "seconds": 0,
        "duration": "string"
    }
}