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Indicated by type="XML", implements an XML-based rule syntax for designating SAML attributes and name identifiers to decode into internal attributes. The plugin supports extraction of SAML attributes and name identifiers from the following SAML constructs (it does not know how to pull any other data from these elements, only attributes and name identifiers):
<saml:Assertion><saml:Attribute><saml:NameIdentifier><saml2:Assertion><saml2:Attribute><saml2:NameID><saml2:EncryptedAttribute>
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