pub fn is_retriable(&self) -> bool {
        match self {
            Self::Initialization { is_retriable, .. } | Self::Other { is_retriable, .. } => {
                *is_retriable
            }
            Self::KeyNotFound(_) | Self::Serialization(_) => false,
        }
    }
Gives a best-effort estimate whether this error is retriable.
core/lib/object_store/src/raw.rs