Macro declare_agent_type_data 

macro_rules! declare_agent_type_data {
    ($name:ident, $agent:ident, $model:ident) => { ... };
}

A macro for declaring a global variable containing an agent type.

Usage is declare_agent_type_data! { TYPE_NAME, StateTypeName, ModelTypeName }. It declares a global variable named TYPE_NAME which contains std::cell::RefCell<Option<std::rc::Rc<AgentTypeData::<StateTypeName, <ModelTypeName as MetaModel>::StateId, <ModelTypeName as MetaModel>::Payload >>>, the details of which shouldn’t interest you much since other macros access this in a friendly way.