Function is_mapping

example/cacheHierarchy/fkYAML/node.hpp:13523–13525

@brief Tests whether the current basic_node value is of mapping type. @return true if the type is mapping, false otherwise. @sa https://fktn-k.github.io/fkYAML/api/basic_node/is_mapping/

    /// @return true if the type is mapping, false otherwise.
    /// @sa https://fktn-k.github.io/fkYAML/api/basic_node/is_mapping/
    bool is_mapping() const noexcept {
        return resolve_reference().is_mapping_impl();
    }

    /// @brief Tests whether the current basic_node value is of null type.
    /// @return true if the type is null, false otherwise.