number ret = bindings.COption_u32Z_clone(this.ptr);
Option_u32Z ret_hu_conv = Option_u32Z.constr_from_ptr(ret);
ret_hu_conv.ptrs_to.add(this);
number ret = bindings.COption_u32Z_clone(this.ptr);
Option_u32Z ret_hu_conv = Option_u32Z.constr_from_ptr(ret);
ret_hu_conv.ptrs_to.add(this);