sign method
Implementation
String sign(String message) {
final units = utf8.encode(message);
final outLen = olm_account_signature_length(_inst);
final mem = malloc.call<Uint8>(units.length + outLen);
final outMem = mem.elementAt(units.length);
try {
mem.asTypedList(units.length).setAll(0, units);
olm_account_sign(_inst, mem, units.length, outMem, outLen);
return utf8.decode(outMem.asTypedList(outLen));
} finally {
malloc.free(mem);
}
}