Function decode 

pub fn decode(bytes: &[u8]) -> Result<ValueEnvelope>

Decode an envelope from binary format (MessagePack)

Example

use shape_wire::{encode, decode, ValueEnvelope};

let env = ValueEnvelope::number(42.0);
let bytes = encode(&env);
let decoded = decode(&bytes).unwrap();
assert_eq!(env.value, decoded.value);