feat: default postcard 1.0

libraries/native_model/src/codec/mod.rs

@@ -1,5 +1,6 @@
 pub mod bincode_1_3;
 pub mod bincode_2_rc;
+pub mod postcard_1_0;
 
 /// Encode trait for your own encoding method.
 ///

libraries/native_model/src/codec/postcard_1_0.rs

@@ -0,0 +1,18 @@
+use postcard_1_0::{from_bytes, to_allocvec, Error};
+use serde::{Deserialize, Serialize};
+
+pub struct PostCard;
+
+impl<T: Serialize> super::Encode<T> for PostCard {
+    type Error = Error;
+    fn encode(obj: &T) -> Result<Vec<u8>, Error> {
+        Ok(to_allocvec(obj)?)
+    }
+}
+
+impl<T: for<'a> Deserialize<'a>> super::Decode<T> for PostCard {
+    type Error = Error;
+    fn decode(data: Vec<u8>) -> Result<T, Error> {
+        Ok(from_bytes(&data)?)
+    }
+}