+#define COLOR_parser_nodes__ASendExpr___n_expr 9
+#define COLOR_parser_nodes__ABinopExpr___n_expr2 11
+extern const struct type type_model__MNullType;
+extern const struct type type_model__MNullableType;
+#define COLOR_typing__AExpr__its_variable 64
+extern const struct type type_parser_nodes__AEqExpr;
+#define COLOR_flow__AExpr___after_flow_context 4
+#define COLOR_flow__FlowContext___when_true 7
+void typing__FlowContext__set_var(val* self, val* p0, val* p1);
+#define COLOR_flow__FlowContext___when_false 8
+#define COLOR_model__MNullableType___mtype 4
+extern const struct type type_parser_nodes__ANeExpr;
+void typing__TypeVisitor__null_test(val* self, val* p0);