Loads a session from a pickled base64 string. Decrypts the session using
* the supplied key. Returns olm_error() on failure. If the key doesn't
* match the one used to encrypt the account then olm_session_last_error()
* will be "BAD_ACCOUNT_KEY". If the base64 couldn't be decoded then
* olm_session_last_error() will be "INVALID_BASE64". The input pickled
* buffer is destroyed
Loads a session from a pickled base64 string. Decrypts the session using * the supplied key. Returns olm_error() on failure. If the key doesn't * match the one used to encrypt the account then olm_session_last_error() * will be "BAD_ACCOUNT_KEY". If the base64 couldn't be decoded then * olm_session_last_error() will be "INVALID_BASE64". The input pickled * buffer is destroyed