improve(clients): Add "NotReady" failure cause (#729)

This is useful in the looping model where some SpokePoolClient instances
will be updated faster than others. The looping model doesn't wait for 
the SpokePoolClient to be ready, so it's useful to signal that update
did not occur, rather than assuming that it did.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "@across-protocol/sdk",
   "author": "UMA Team",
-  "version": "3.1.33",
+  "version": "3.1.34",
   "license": "AGPL-3.0",
   "homepage": "https://docs.across.to/reference/sdk",
   "files": [

src/clients/BaseAbstractClient.ts

@@ -3,6 +3,7 @@ import { CachingMechanismInterface } from "../interfaces";
 import { EventSearchConfig, isDefined, MakeOptional } from "../utils";
 
 export enum UpdateFailureReason {
+  NotReady,
   AlreadyUpdated,
   BadRequest,
   RPCError,

src/clients/index.ts

@@ -4,6 +4,7 @@ export {
   AcrossConfigStoreClient,
   ConfigStoreUpdate,
 } from "./AcrossConfigStoreClient";
+export { UpdateFailureReason } from "./BaseAbstractClient";
 export { HubPoolClient, LpFeeRequest } from "./HubPoolClient";
 export { SpokePoolClient, SpokePoolUpdate } from "./SpokePoolClient";
 export * as BundleDataClient from "./BundleDataClient";