fix: add missing files - this logic should be moved to js-flare-common

Author: adg-flare

src/external-libs/AttestationDefinitionStoreExtended.ts

@@ -0,0 +1,15 @@
+import {
+  AttestationDefinitionStore,
+  decodeAttestationName,
+} from '@flarenetwork/js-flare-common';
+import { ParamType } from 'ethers';
+import { AttestationTypeBase_Response } from '../dtos/attestation-types/AttestationTypeBase.dto';
+
+export class AttestationDefinitionStoreExtended extends AttestationDefinitionStore {
+  encodeResponse(response: AttestationTypeBase_Response): string {
+    const attestationType = decodeAttestationName(response.attestationType);
+    const { responseAbi } =
+      this.getABIsForDecodedAttestationType(attestationType);
+    return this.coder.encode([responseAbi as string | ParamType], [response]);
+  }
+}

src/external-libs/serializeBigInts.ts

@@ -0,0 +1,7 @@
+export function serializeBigInts<T>(obj: T): T {
+  return JSON.parse(
+    JSON.stringify(obj, (_key, value: unknown) =>
+      typeof value === 'bigint' ? value.toString() : value,
+    ),
+  ) as T;
+}