Constant REPEATABLE_SETUP_PARAMETERS 

const REPEATABLE_SETUP_PARAMETERS: &[u64];

The Setup Parameter Types whose own definition allows a repeat.

Draft-11 defines three Setup Parameters - PATH, MAX_REQUEST_ID and MAX_AUTH_TOKEN_CACHE_SIZE - and none of them says it may be repeated, so this namespace has no carve-out. Drafts 12 and 13 add AUTHORIZATION TOKEN to the setup side in Section 8.3.2.4 and gain one.

The two namespaces are kept apart because 0x01 means different things in each: AUTHORIZATION TOKEN among Version Specific Parameters, PATH among Setup Parameters. One shared exemption list would let a CLIENT_SETUP state PATH twice.