Merge pull request #5407 from BitGo/BTC-0-backup-codec

feat(sdk-core): add backup codecs

Author: ericli-bitgo

modules/sdk-core/src/bitgo/lightning/codecs.ts

@@ -173,3 +173,23 @@ export const LndGetBalancesResponse = t.strict(
 );
 
 export type LndGetBalancesResponse = t.TypeOf<typeof LndGetBalancesResponse>;
+
+export const ChanPoints = t.strict(
+  {
+    fundingTxid: t.string,
+    outputIndex: t.number,
+  },
+  'ChanPoints'
+);
+
+export type ChanPoints = t.TypeOf<typeof ChanPoints>;
+
+export const BackupResponse = t.strict(
+  {
+    chanPoints: t.array(ChanPoints),
+    multiChanBackup: t.string,
+  },
+  'BackupResponse'
+);
+
+export type BackupResponse = t.TypeOf<typeof BackupResponse>;