Configuring SAML (onelogin/php-saml) to work with siteminder

Hi guys, I am having trouble configuring SAML with SuiteCRM.
We are using siteminder at work as Idp, and the admins are asking for the metadata file so that they can register the app on their end.
As I understood, suitecrm does not offer automatic generation of this metadata file, so we have to create our own? Does anyone have a sample XML file they can share?
Also, has anyone managed to configure SuiteCRM with siteminder? Is it even possible?