/// Returns namespace of all functions related to nodes
/// Mod with functions for building constructors of nodes
/// Mod with functions for building destructors of nodes
/// Mod with functions for building field getters of nodes
/// Mod with functions for building field setters of nodes
/// Mod with utility functions to get name and type of the node field
/// Mod with functions for building internal structs of nodes
/// (used pretty much like move ctors)
/// Mod with functions for building into-internal functions of nodes
/// Mod with functions for building into-variant functions of nodes
/// Mod with functions for building cast-to-variant functions of nodes
/// Mod with functions for building is-a-variant functions of nodes