message: Use new format for exposing db functions
diff: @@ -72,7 +72,7 @@ export async function find(query: Q.Query): Promise<Document[]> {
  export async function poll(keysToVersions: KeyedVersions): Promise<KeyedPatches> {
  return await db.poll(keysToVersions);
  }
  -poll.__shiftjs__ = 'exposed';
  +poll.__shiftjs__ = { exposed: true };
  /**
  * Gets a single document by key including its version.
  @@ -87,4 +87,4 @@ export async function getVersioned<T extends Serializable = any>(key: string): P
  value: doc.value,
  };
  }
  -getVersioned.__shiftjs__ = 'exposed';
  +getVersioned.__shiftjs__ = { exposed: true };
  