def get_message(self, envelope):
        
        stripped = self._stripEnvelope(envelope)
        normalized = self._bnormal(stripped)
        canonical = self._buildCanonicalString(normalized)
        hashedDigest = self._hash(canonical)
        
        return hashedDigest
Hashes the contents of an LR envelope in the following manner:
dataset/ETHPy150Open jimklo/LRSignature/src/LRSignature/sign/Sign.py/Sign_0_21.get_message