<status value="draft"/> <experimental value="true"/> <publisher value="HL7 International / FHIR Infrastructure"/> <contact> <telecom> <system value="url"/> <value value="http://www.hl7.org/Special/committees/fiwg"/> </telecom> </contact> <description value="Search Composition Bundle"/> <code value="example-constraint"/> <aliasCode value="constraint-example"/> <base value="Bundle"/> <type value="reference"/> <expression value="Bundle.entry[0].resource"/> <processingMode value="normal"/> <constraint value="Bundle.type = 'document' and Bundle.entry[0].resource is Composition"/> <target value="Composition"/> </SearchParameter>