Sourcetype constraint_type = Univ.constraint_type Sourceval hash_fold_constraint_type :
Ppx_hash_lib.Std.Hash.state ->
constraint_type ->
Ppx_hash_lib.Std.Hash.state Sourcetype univ_constraint = Univ.univ_constraint Sourcetype 'a in_universe_context_set = 'a Univ.in_universe_context_set