Named Service Binding: The RPC receiver does not implement the method ...

# consumer wrangler.toml
[[services]]
binding = "ALIAS_MANAGER"
service = "arpamail-relay"
entrypoint = "AliasManager"

// provider index.ts
import { AliasManager } from "./aliases";

// Re-export entrypoint classes for other workers to use.
export { AliasManager };