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This element is defined by the urn:mace:shibboleth:2.0:resolver:dc schema schema, which is located at http://shibboleth.net/schema/idp/shibboleth-attribute-resolver-dc.xsd.
The xsi:type of the credential referenced is usually defined by the urn:mace:shibboleth:2.0:security schema, which is located at http://shibboleth.net/schema/idp/shibboleth-security.xsd.
Note that this namespace has not been collapsed into the urn:mace:shibboleth:2.0:resolver one.
Attributes
Attributes may only be provided if required by the specific credential type.
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