feat(BigInt): serialize bytes as base64

Author: Ro6afF

Cargo.toml

@@ -16,6 +16,7 @@ num-traits = "0.2"
 num-derive = "0.4"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
+serde_bytes = "0.11.17"
 serde_repr = "0.1"
 
 [lib]

src/types.rs

@@ -387,7 +387,9 @@ pub enum ValueRecord {
         place: Place,
     },
     BigInt {
-        b: Vec<u8>, // Big endian
+        #[serde(with = "serde_bytes")]
+        b: Vec<u8>, // Base64 encoded bytes of a big-endian unsigned integer
+        negative: bool,
         type_id: TypeId,
     },
 }