class ActiveStorage::Service::GCSService

def update_metadata(key, content_type:, disposition: nil, filename: nil, custom_metadata: {})
  instrument :update_metadata, key: key, content_type: content_type, disposition: disposition do
    file_for(key).update do |file|
      file.content_type = content_type
      file.content_disposition = content_disposition_with(type: disposition, filename: filename) if disposition && filename
      file.metadata = custom_metadata
    end
  end
end