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-rw-r--r--py/obj.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/py/obj.h b/py/obj.h
index 48080a0ec0..d897d906d9 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -234,6 +234,7 @@ void mp_obj_get_complex(mp_obj_t self_in, mp_float_t *real, mp_float_t *imag);
qstr mp_obj_get_qstr(mp_obj_t arg);
mp_obj_t *mp_obj_get_array_fixed_n(mp_obj_t o, machine_int_t n);
uint mp_get_index(const mp_obj_type_t *type, machine_uint_t len, mp_obj_t index);
+mp_obj_t mp_obj_len_maybe(mp_obj_t o_in); /* may return NULL */
// none
extern const mp_obj_type_t none_type;