Function MsLookupHelper

src/script/sign.cpp:405–413

template<typename M, typename K, typename V>
miniscript::Availability MsLookupHelper(const M& map, const K& key, V& value)
{
    auto it = map.find(key);
    if (it != map.end()) {
        value = it->second;
        return miniscript::Availability::YES;
    }
    return miniscript::Availability::NO;
}

/**
 * Context for solving a Miniscript.