make compute_fee public
@@ -151,7 +151,7 @@ impl<T: Trait + Send + Sync> ChargeTransactionPayment<T> {
/// transactions can have a tip.
///
/// final_fee = base_fee + targeted_fee_adjustment(len_fee + weight_fee) + tip;
- fn compute_fee(
+ pub fn compute_fee(
len: u32,
info: <Self as SignedExtension>::DispatchInfo,
tip: BalanceOf<T>,
