feat: type errors in definitions

packages/core/src/protobuf/fetchPB.ts

@@ -0,0 +1,8 @@
+import { MessageFns } from '../protos';
+
+export async function fetchPB<Type>(url: string, message: MessageFns<Type>) {
+  const response = await fetch(url);
+  const buffer = await response.arrayBuffer();
+  const array = new Uint8Array(buffer);
+  return message.decode(array);
+}