internal/SamlRequestTemplate.xml

<samlp:AuthnRequest xmlns="urn:oasis:names:tc:SAML:2.0:metadata" ID="" Version="2.0" IssueInstant=""
    xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
    xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion">
    <Issuer xmlns="urn:oasis:names:tc:SAML:2.0:assertion">Issuer</Issuer>
    <samlp:NameIDPolicy />
    <samlp:RequestedAuthnContext>
        <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:Unspecified</saml:AuthnContextClassRef>
    </samlp:RequestedAuthnContext>
</samlp:AuthnRequest>