feat: pallet asset-rate (#13608)

* poc

* fix: remove AssetIdParameter

* tests: add

* docs: add pallet description

* feat: add benches

* refactor: UnknownAssetId

* fix: normalize mock cfg

* fix: benchmarks

* chore: add weights

* refactor: remove storage getter

* chore: apply suggestions from code review

* docs: add native balance to calls

* chore: apply suggestions from code review

* chore: apply ConversionFromAssetBalance

* tests: update balance mock

* chore: apply suggestions from code review

* ci: set publish to false

* docs: fix missing rustdoc

---------

Co-authored-by: parity-processbot <>

substrate/Cargo.lock

@@ -3634,6 +3634,7 @@ dependencies = [
  "log",
  "node-primitives",
  "pallet-alliance",
+ "pallet-asset-rate",
  "pallet-asset-tx-payment",
  "pallet-assets",
  "pallet-authority-discovery",
@@ -5556,6 +5557,22 @@ dependencies = [
  "sp-std",
 ]
 
+[[package]]
+name = "pallet-asset-rate"
+version = "4.0.0-dev"
+dependencies = [
+ "frame-benchmarking",
+ "frame-support",
+ "frame-system",
+ "pallet-balances",
+ "parity-scale-codec",
+ "scale-info",
+ "sp-core",
+ "sp-io",
+ "sp-runtime",
+ "sp-std",
+]
+
 [[package]]
 name = "pallet-asset-tx-payment"
 version = "4.0.0-dev"