https://docs.spring.io/spring-security/site/docs/current/api/org/springframework/security/saml2/provider/service/registration/Saml2MessageBinding.html
Saml2MessageBinding (spring-security-docs 7.0.0 API)
declaration: package: org.springframework.security.saml2.provider.service.registration, enum: Saml2MessageBinding
spring securitydocsapi