diff --git a/py/objint.h b/py/objint.h
new file mode 100644
index 0000000..14cf977
--- /dev/null
+++ b/py/objint.h
@@ -0,0 +1,9 @@
+typedef struct _mp_obj_int_t {
+    mp_obj_base_t base;
+#if MICROPY_LONGINT_IMPL != MICROPY_LONGINT_IMPL_NONE
+    mp_longint_impl_t val;
+#endif
+} mp_obj_int_t;
+
+void int_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in);
+mp_obj_t int_binary_op(int op, mp_obj_t lhs_in, mp_obj_t rhs_in);