Method is

lib/yamlcpp/include/yaml-cpp/node/impl.h:195–201

assignment

// assignment
inline bool Node::is(const Node& rhs) const {
  if (!m_isValid || !rhs.m_isValid)
    throw InvalidNode(m_invalidKey);
  if (!m_pNode || !rhs.m_pNode)
    return false;
  return m_pNode->is(*rhs.m_pNode);
}

template <typename T>
inline Node& Node::operator=(const T& rhs) {