def self.folder(subclass = nil, credentials: nil)
        require 'google/apis/cloudresourcemanager_v2'

        if subclass.nil?
          @@resource2_api[credentials] ||= MU::Cloud::Google::GoogleEndpoint.new(api: "CloudresourcemanagerV2::CloudResourceManagerService", scopes: ['cloud-platform', 'cloudplatformfolders'], credentials: credentials,  masquerade: MU::Cloud::Google.credConfig(credentials)['masquerade_as'])