f:Bundle
id: minimum cardinality of 'id' is 1
timestamp: minimum cardinality of 'timestamp' is 1
total: maximum cardinality of 'total' is 0
f:Bundle/f:entry
search: maximum cardinality of 'search' is 0
request: maximum cardinality of 'request' is 0
response: maximum cardinality of 'response' is 0
resource: minimum cardinality of 'resource' is 1