`TOAuth2Handler`
pt		CheckHostedDomain
pt		RefreshToken
pt		CreateOauth2Config
pt		CreateOauth2Session
pt		CreateIDToken
pt		Notification
pt		DoAuthConfigChange
pt		DoAuthSessionChange
pt		DoSignRequest
		Create
		Destroy
		AuthScopeVariableName
		DefaultHostedDomain
		IsAuthenticated
		AuthenticateURL
		Authenticate
		LoadConfig
		SaveConfig
		LoadSession
		SaveSession
		RefreshIDToken

`TAbstractRequestSigner`
pt		DoSignRequest
		SignRequest