- long ret = bindings.ChannelAnnouncement_new(node_signature_1_arg, node_signature_2_arg, bitcoin_signature_1_arg, bitcoin_signature_2_arg, contents_arg == null ? 0 : contents_arg.ptr & ~1);
+ long ret = bindings.ChannelAnnouncement_new(InternalUtils.check_arr_len(node_signature_1_arg, 64), InternalUtils.check_arr_len(node_signature_2_arg, 64), InternalUtils.check_arr_len(bitcoin_signature_1_arg, 64), InternalUtils.check_arr_len(bitcoin_signature_2_arg, 64), contents_arg == null ? 0 : contents_arg.ptr & ~1);