typedef struct nativeHTLCUpdateOpaque LDKnativeHTLCUpdate;
struct nativeChannelMonitorOpaque;
typedef struct nativeChannelMonitorOpaque LDKnativeChannelMonitor;
typedef struct nativeHTLCUpdateOpaque LDKnativeHTLCUpdate;
struct nativeChannelMonitorOpaque;
typedef struct nativeChannelMonitorOpaque LDKnativeChannelMonitor;