wst:RequestSecurityTokenType

        Actual content model is non-deterministic, hence wildcard. The following shows intended content model:

        <xs:element ref='wst:TokenType' minOccurs='0' />
        <xs:element ref='wst:RequestType' />
        <xs:element ref='wsp:AppliesTo' minOccurs='0' />
        <xs:element ref='wst:Claims' minOccurs='0' />
        <xs:element ref='wst:Entropy' minOccurs='0' />
        <xs:element ref='wst:Lifetime' minOccurs='0' />
        <xs:element ref='wst:AllowPostdating' minOccurs='0' />
        <xs:element ref='wst:Renewing' minOccurs='0' />
        <xs:element ref='wst:OnBehalfOf' minOccurs='0' />
        <xs:element ref='wst:Issuer' minOccurs='0' />
        <xs:element ref='wst:AuthenticationType' minOccurs='0' />
        <xs:element ref='wst:KeyType' minOccurs='0' />
        <xs:element ref='wst:KeySize' minOccurs='0' />
        <xs:element ref='wst:SignatureAlgorithm' minOccurs='0' />
        <xs:element ref='wst:Encryption' minOccurs='0' />
        <xs:element ref='wst:EncryptionAlgorithm' minOccurs='0' />
        <xs:element ref='wst:CanonicalizationAlgorithm' minOccurs='0' />
        <xs:element ref='wst:ProofEncryption' minOccurs='0' />
        <xs:element ref='wst:UseKey' minOccurs='0' />
        <xs:element ref='wst:SignWith' minOccurs='0' />
        <xs:element ref='wst:EncryptWith' minOccurs='0' />
        <xs:element ref='wst:DelegateTo' minOccurs='0' />
        <xs:element ref='wst:Forwardable' minOccurs='0' />
        <xs:element ref='wst:Delegatable' minOccurs='0' />
        <xs:element ref='wsp:Policy' minOccurs='0' />
        <xs:element ref='wsp:PolicyReference' minOccurs='0' />
        <xs:any namespace='##other' processContents='lax' minOccurs='0' maxOccurs='unbounded' />