code: func (r *ProviderConfigRef) Addr() addrs.ProviderConfig {
  	return addrs.ProviderConfig{
  		Type:  r.Name,
  		Alias: r.Alias,
  	}
  }
docs: // Addr returns the provider config address corresponding to the receiving
  // config reference.
  //
  // This is a trivial conversion, essentially just discarding the source
  // location information and keeping just the addressing information.