- number ret = bindings.ChannelManager_create_channel(this.ptr, their_network_key, channel_value_satoshis, push_msat, user_channel_id, override_config == null ? 0 : override_config.ptr & ~1);
+ number ret = bindings.ChannelManager_create_channel(this.ptr, InternalUtils.check_arr_len(their_network_key, 33), channel_value_satoshis, push_msat, user_channel_id, override_config == null ? 0 : override_config.ptr & ~1);