optimized packing slightly. restrict interactions

Cargo.lock

@@ -1237,6 +1237,7 @@ dependencies = [
  "rmp-serde",
  "serde",
  "serde_json",
+ "serde_repr",
  "serenity",
  "sqlx",
  "tokio",
@@ -1446,6 +1447,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_repr"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "98d0516900518c29efa217c298fa1f4e6c6ffc85ae29fd7f4ee48f176e1a9ed5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.0"