Generate a dedicated file for the external types

45 files changed, 253 insertions, 78 deletions

diff --git a/tests/coq/array/Array.v b/tests/coq/array/Array.v
index 99ff3b03..105ce21f 100644
--- a/tests/coq/array/Array.v
+++ b/tests/coq/array/Array.v
@@ -528,4 +528,4 @@ Definition ite : result unit :=
   Return tt
 .
 
-End Array .
+End Array.
diff --git a/tests/coq/betree/BetreeMain_Funs.v b/tests/coq/betree/BetreeMain_Funs.v
index ede82492..aadaa20d 100644
--- a/tests/coq/betree/BetreeMain_Funs.v
+++ b/tests/coq/betree/BetreeMain_Funs.v
@@ -6,10 +6,10 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export BetreeMain_Types.
-Import BetreeMain_Types.
-Require Export BetreeMain_FunsExternal.
-Import BetreeMain_FunsExternal.
+Require Import BetreeMain_Types.
+Include BetreeMain_Types.
+Require Import BetreeMain_FunsExternal.
+Include BetreeMain_FunsExternal.
 Module BetreeMain_Funs.
 
 (** [betree_main::betree::load_internal_node]: forward function
@@ -1230,4 +1230,4 @@ Definition main : result unit :=
 (** Unit test for [betree_main::main] *)
 Check (main )%return.
 
-End BetreeMain_Funs .
+End BetreeMain_Funs.
diff --git a/tests/coq/betree/BetreeMain_FunsExternal_Template.v b/tests/coq/betree/BetreeMain_FunsExternal_Template.v
index 4898acd4..36022a20 100644
--- a/tests/coq/betree/BetreeMain_FunsExternal_Template.v
+++ b/tests/coq/betree/BetreeMain_FunsExternal_Template.v
@@ -7,8 +7,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export BetreeMain_Types.
-Import BetreeMain_Types.
+Require Import BetreeMain_Types.
+Include BetreeMain_Types.
 Module BetreeMain_FunsExternal_Template.
 
 (** [betree_main::betree_utils::load_internal_node]: forward function
@@ -43,4 +43,4 @@ Axiom core_option_Option_unwrap :
   forall(T : Type), option T -> state -> result (state * T)
 .
 
-End BetreeMain_FunsExternal_Template .
+End BetreeMain_FunsExternal_Template.
diff --git a/tests/coq/betree/BetreeMain_Types.v b/tests/coq/betree/BetreeMain_Types.v
index b729d1c3..22989256 100644
--- a/tests/coq/betree/BetreeMain_Types.v
+++ b/tests/coq/betree/BetreeMain_Types.v
@@ -6,6 +6,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
+Require Import BetreeMain_TypesExternal.
+Include BetreeMain_TypesExternal.
 Module BetreeMain_Types.
 
 (** [betree_main::betree::List]
@@ -113,7 +115,4 @@ mkbetree_BeTree_t {
 }
 .
 
-(** The state type used in the state-error monad *)
-Axiom state : Type.
-
-End BetreeMain_Types .
+End BetreeMain_Types.
diff --git a/tests/coq/betree/BetreeMain_TypesExternal.v b/tests/coq/betree/BetreeMain_TypesExternal.v
new file mode 100644
index 00000000..50c4a4f8
--- /dev/null
+++ b/tests/coq/betree/BetreeMain_TypesExternal.v
@@ -0,0 +1,15 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [betree_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module BetreeMain_TypesExternal.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End BetreeMain_TypesExternal.
diff --git a/tests/coq/betree/BetreeMain_TypesExternal_Template.v b/tests/coq/betree/BetreeMain_TypesExternal_Template.v
new file mode 100644
index 00000000..651de2b7
--- /dev/null
+++ b/tests/coq/betree/BetreeMain_TypesExternal_Template.v
@@ -0,0 +1,15 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [betree_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module BetreeMain_TypesExternal_Template.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End BetreeMain_TypesExternal_Template.
diff --git a/tests/coq/betree/_CoqProject b/tests/coq/betree/_CoqProject
index 9ab8ea9f..13e4b9c1 100644
--- a/tests/coq/betree/_CoqProject
+++ b/tests/coq/betree/_CoqProject
@@ -4,7 +4,9 @@
 -arg all
 
 BetreeMain_Types.v
+BetreeMain_TypesExternal_Template.v
 Primitives.v
 BetreeMain_FunsExternal_Template.v
 BetreeMain_Funs.v
+BetreeMain_TypesExternal.v
 BetreeMain_FunsExternal.v
diff --git a/tests/coq/hashmap/Hashmap_Funs.v b/tests/coq/hashmap/Hashmap_Funs.v
index c08f7f7d..64de44a6 100644
--- a/tests/coq/hashmap/Hashmap_Funs.v
+++ b/tests/coq/hashmap/Hashmap_Funs.v
@@ -6,8 +6,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export Hashmap_Types.
-Import Hashmap_Types.
+Require Import Hashmap_Types.
+Include Hashmap_Types.
 Module Hashmap_Funs.
 
 (** [hashmap::hash_key]: forward function
@@ -668,4 +668,4 @@ Definition test1 (n : nat) : result unit :=
       end))
 .
 
-End Hashmap_Funs .
+End Hashmap_Funs.
diff --git a/tests/coq/hashmap/Hashmap_Types.v b/tests/coq/hashmap/Hashmap_Types.v
index bfb5ae4b..80a43593 100644
--- a/tests/coq/hashmap/Hashmap_Types.v
+++ b/tests/coq/hashmap/Hashmap_Types.v
@@ -35,4 +35,4 @@ Arguments hashMap_max_load_factor { _ }.
 Arguments hashMap_max_load { _ }.
 Arguments hashMap_slots { _ }.
 
-End Hashmap_Types .
+End Hashmap_Types.
diff --git a/tests/coq/hashmap_on_disk/HashmapMain_Funs.v b/tests/coq/hashmap_on_disk/HashmapMain_Funs.v
index 188c98b3..faba0afe 100644
--- a/tests/coq/hashmap_on_disk/HashmapMain_Funs.v
+++ b/tests/coq/hashmap_on_disk/HashmapMain_Funs.v
@@ -6,10 +6,10 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export HashmapMain_Types.
-Import HashmapMain_Types.
-Require Export HashmapMain_FunsExternal.
-Import HashmapMain_FunsExternal.
+Require Import HashmapMain_Types.
+Include HashmapMain_Types.
+Require Import HashmapMain_FunsExternal.
+Include HashmapMain_FunsExternal.
 Module HashmapMain_Funs.
 
 (** [hashmap_main::hashmap::hash_key]: forward function
@@ -717,4 +717,4 @@ Definition insert_on_disk
 Definition main : result unit :=
   Return tt.
 
-End HashmapMain_Funs .
+End HashmapMain_Funs.
diff --git a/tests/coq/hashmap_on_disk/HashmapMain_FunsExternal_Template.v b/tests/coq/hashmap_on_disk/HashmapMain_FunsExternal_Template.v
index b5a4a101..e10d02f6 100644
--- a/tests/coq/hashmap_on_disk/HashmapMain_FunsExternal_Template.v
+++ b/tests/coq/hashmap_on_disk/HashmapMain_FunsExternal_Template.v
@@ -7,8 +7,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export HashmapMain_Types.
-Import HashmapMain_Types.
+Require Import HashmapMain_Types.
+Include HashmapMain_Types.
 Module HashmapMain_FunsExternal_Template.
 
 (** [hashmap_main::hashmap_utils::deserialize]: forward function
@@ -23,4 +23,4 @@ Axiom hashmap_utils_serialize
   : hashmap_HashMap_t u64 -> state -> result (state * unit)
 .
 
-End HashmapMain_FunsExternal_Template .
+End HashmapMain_FunsExternal_Template.
diff --git a/tests/coq/hashmap_on_disk/HashmapMain_Types.v b/tests/coq/hashmap_on_disk/HashmapMain_Types.v
index 039b7e72..8d3d72aa 100644
--- a/tests/coq/hashmap_on_disk/HashmapMain_Types.v
+++ b/tests/coq/hashmap_on_disk/HashmapMain_Types.v
@@ -6,6 +6,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
+Require Import HashmapMain_TypesExternal.
+Include HashmapMain_TypesExternal.
 Module HashmapMain_Types.
 
 (** [hashmap_main::hashmap::List]
@@ -35,7 +37,4 @@ Arguments hashmap_HashMap_max_load_factor { _ }.
 Arguments hashmap_HashMap_max_load { _ }.
 Arguments hashmap_HashMap_slots { _ }.
 
-(** The state type used in the state-error monad *)
-Axiom state : Type.
-
-End HashmapMain_Types .
+End HashmapMain_Types.
diff --git a/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal.v b/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal.v
new file mode 100644
index 00000000..87568232
--- /dev/null
+++ b/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal.v
@@ -0,0 +1,15 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [hashmap_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module HashmapMain_TypesExternal.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End HashmapMain_TypesExternal.
diff --git a/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal_Template.v b/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal_Template.v
new file mode 100644
index 00000000..391b2775
--- /dev/null
+++ b/tests/coq/hashmap_on_disk/HashmapMain_TypesExternal_Template.v
@@ -0,0 +1,15 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [hashmap_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module HashmapMain_TypesExternal_Template.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End HashmapMain_TypesExternal_Template.
diff --git a/tests/coq/hashmap_on_disk/_CoqProject b/tests/coq/hashmap_on_disk/_CoqProject
index a85fa1fe..41945494 100644
--- a/tests/coq/hashmap_on_disk/_CoqProject
+++ b/tests/coq/hashmap_on_disk/_CoqProject
@@ -6,5 +6,7 @@
 HashmapMain_Types.v
 Primitives.v
 HashmapMain_Funs.v
+HashmapMain_TypesExternal.v
 HashmapMain_FunsExternal_Template.v
 HashmapMain_FunsExternal.v
+HashmapMain_TypesExternal_Template.v
diff --git a/tests/coq/misc/Constants.v b/tests/coq/misc/Constants.v
index 20edb2b1..ad899f25 100644
--- a/tests/coq/misc/Constants.v
+++ b/tests/coq/misc/Constants.v
@@ -157,4 +157,4 @@ Definition s3_c : Pair_t u32 u32 := s3_body%global.
 Definition s4_body : result (Pair_t u32 u32) := mk_pair1 7%u32 8%u32.
 Definition s4_c : Pair_t u32 u32 := s4_body%global.
 
-End Constants .
+End Constants.
diff --git a/tests/coq/misc/External_Funs.v b/tests/coq/misc/External_Funs.v
index 8a3360bb..e9d39f66 100644
--- a/tests/coq/misc/External_Funs.v
+++ b/tests/coq/misc/External_Funs.v
@@ -6,10 +6,10 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export External_Types.
-Import External_Types.
-Require Export External_FunsExternal.
-Import External_FunsExternal.
+Require Import External_Types.
+Include External_Types.
+Require Import External_FunsExternal.
+Include External_FunsExternal.
 Module External_Funs.
 
 (** [external::swap]: forward function
@@ -115,4 +115,4 @@ Definition test_swap_non_zero (x : u32) (st : state) : result (state * u32) :=
   if x0 s= 0%u32 then Fail_ Failure else Return (st1, x0)
 .
 
-End External_Funs .
+End External_Funs.
diff --git a/tests/coq/misc/External_FunsExternal.v b/tests/coq/misc/External_FunsExternal.v
index 07d43061..a8c5756a 100644
--- a/tests/coq/misc/External_FunsExternal.v
+++ b/tests/coq/misc/External_FunsExternal.v
@@ -7,7 +7,7 @@ Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
 Require Export External_Types.
-Import External_Types.
+Include External_Types.
 Module External_FunsExternal.
 
 (** [core::mem::swap]: forward function
diff --git a/tests/coq/misc/External_FunsExternal_Template.v b/tests/coq/misc/External_FunsExternal_Template.v
index 0977c3ae..31e69c39 100644
--- a/tests/coq/misc/External_FunsExternal_Template.v
+++ b/tests/coq/misc/External_FunsExternal_Template.v
@@ -7,8 +7,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
-Require Export External_Types.
-Import External_Types.
+Require Import External_Types.
+Include External_Types.
 Module External_FunsExternal_Template.
 
 (** [core::mem::swap]: forward function
@@ -41,4 +41,4 @@ Axiom core_option_Option_unwrap :
   forall(T : Type), option T -> state -> result (state * T)
 .
 
-End External_FunsExternal_Template .
+End External_FunsExternal_Template.
diff --git a/tests/coq/misc/External_Types.v b/tests/coq/misc/External_Types.v
index c638670c..b42c2ecf 100644
--- a/tests/coq/misc/External_Types.v
+++ b/tests/coq/misc/External_Types.v
@@ -6,13 +6,8 @@ Require Import Coq.ZArith.ZArith.
 Require Import List.
 Import ListNotations.
 Local Open Scope Primitives_scope.
+Require Import External_TypesExternal.
+Include External_TypesExternal.
 Module External_Types.
 
-(** [core::num::nonzero::NonZeroU32]
-    Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 *)
-Axiom core_num_nonzero_NonZeroU32_t : Type.
-
-(** The state type used in the state-error monad *)
-Axiom state : Type.
-
-End External_Types .
+End External_Types.
diff --git a/tests/coq/misc/External_TypesExternal.v b/tests/coq/misc/External_TypesExternal.v
new file mode 100644
index 00000000..3f02b839
--- /dev/null
+++ b/tests/coq/misc/External_TypesExternal.v
@@ -0,0 +1,19 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [external]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module External_TypesExternal.
+
+(** [core::num::nonzero::NonZeroU32]
+    Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 *)
+Axiom core_num_nonzero_NonZeroU32_t : Type.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End External_TypesExternal.
diff --git a/tests/coq/misc/External_TypesExternal_Template.v b/tests/coq/misc/External_TypesExternal_Template.v
new file mode 100644
index 00000000..7ba79d8e
--- /dev/null
+++ b/tests/coq/misc/External_TypesExternal_Template.v
@@ -0,0 +1,19 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [external]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes. *)
+Require Import Primitives.
+Import Primitives.
+Require Import Coq.ZArith.ZArith.
+Require Import List.
+Import ListNotations.
+Local Open Scope Primitives_scope.
+Module External_TypesExternal_Template.
+
+(** [core::num::nonzero::NonZeroU32]
+    Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 *)
+Axiom core_num_nonzero_NonZeroU32_t : Type.
+
+(** The state type used in the state-error monad *)
+Axiom state : Type.
+
+End External_TypesExternal_Template.
diff --git a/tests/coq/misc/Loops.v b/tests/coq/misc/Loops.v
index 4929ddd0..83c249c1 100644
--- a/tests/coq/misc/Loops.v
+++ b/tests/coq/misc/Loops.v
@@ -914,4 +914,4 @@ Definition list_nth_shared_mut_loop_pair_merge_back
   list_nth_shared_mut_loop_pair_merge_loop_back T n ls0 ls1 i ret
 .
 
-End Loops .
+End Loops.
diff --git a/tests/coq/misc/NoNestedBorrows.v b/tests/coq/misc/NoNestedBorrows.v
index b044d24f..16a2e816 100644
--- a/tests/coq/misc/NoNestedBorrows.v
+++ b/tests/coq/misc/NoNestedBorrows.v
@@ -586,4 +586,4 @@ Definition test_shared_borrow_enum1 (l : List_t u32) : result u32 :=
 Definition test_shared_borrow_enum2 : result u32 :=
   Return 0%u32.
 
-End NoNestedBorrows .
+End NoNestedBorrows.
diff --git a/tests/coq/misc/Paper.v b/tests/coq/misc/Paper.v
index 4a49096f..6b110193 100644
--- a/tests/coq/misc/Paper.v
+++ b/tests/coq/misc/Paper.v
@@ -128,4 +128,4 @@ Definition call_choose (p : (u32 * u32)) : result u32 :=
   Return px0
 .
 
-End Paper .
+End Paper.
diff --git a/tests/coq/misc/PoloniusList.v b/tests/coq/misc/PoloniusList.v
index a0820e40..2371b1cc 100644
--- a/tests/coq/misc/PoloniusList.v
+++ b/tests/coq/misc/PoloniusList.v
@@ -41,4 +41,4 @@ Fixpoint get_list_at_x_back
   end
 .
 
-End PoloniusList .
+End PoloniusList.
diff --git a/tests/coq/misc/_CoqProject b/tests/coq/misc/_CoqProject
index 6884d5d9..0828bced 100644
--- a/tests/coq/misc/_CoqProject
+++ b/tests/coq/misc/_CoqProject
@@ -4,12 +4,14 @@
 -arg all
 
 Loops.v
+External_Types.v
 Primitives.v
 External_Funs.v
+Paper.v
+External_TypesExternal.v
 Constants.v
 PoloniusList.v
-External_Types.v
 NoNestedBorrows.v
 External_FunsExternal.v
+External_TypesExternal_Template.v
 External_FunsExternal_Template.v
-Paper.v
diff --git a/tests/coq/traits/Traits.v b/tests/coq/traits/Traits.v
index 50eaf848..ebdca4ec 100644
--- a/tests/coq/traits/Traits.v
+++ b/tests/coq/traits/Traits.v
@@ -611,4 +611,4 @@ Arguments CFn_t_call_mut { _ _ }.
 Definition incr_u32 (x : u32) : result u32 :=
   u32_add x 1%u32.
 
-End Traits .
+End Traits.
diff --git a/tests/fstar/betree/BetreeMain.Types.fsti b/tests/fstar/betree/BetreeMain.Types.fst
index a098ec19..b87219b2 100644
--- a/tests/fstar/betree/BetreeMain.Types.fsti
+++ b/tests/fstar/betree/BetreeMain.Types.fst
@@ -2,6 +2,7 @@
 (** [betree_main]: type definitions *)
 module BetreeMain.Types
 open Primitives
+include BetreeMain.TypesExternal
 
 #set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
 
@@ -58,6 +59,3 @@ type betree_BeTree_t =
   root : betree_Node_t;
 }
 
-(** The state type used in the state-error monad *)
-val state : Type0
-
diff --git a/tests/fstar/betree/BetreeMain.TypesExternal.fsti b/tests/fstar/betree/BetreeMain.TypesExternal.fsti
new file mode 100644
index 00000000..1b2c53a6
--- /dev/null
+++ b/tests/fstar/betree/BetreeMain.TypesExternal.fsti
@@ -0,0 +1,10 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [betree_main]: external type declarations *)
+module BetreeMain.TypesExternal
+open Primitives
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
+(** The state type used in the state-error monad *)
+val state : Type0
+
diff --git a/tests/fstar/betree_back_stateful/BetreeMain.Types.fsti b/tests/fstar/betree_back_stateful/BetreeMain.Types.fst
index a098ec19..b87219b2 100644
--- a/tests/fstar/betree_back_stateful/BetreeMain.Types.fsti
+++ b/tests/fstar/betree_back_stateful/BetreeMain.Types.fst
@@ -2,6 +2,7 @@
 (** [betree_main]: type definitions *)
 module BetreeMain.Types
 open Primitives
+include BetreeMain.TypesExternal
 
 #set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
 
@@ -58,6 +59,3 @@ type betree_BeTree_t =
   root : betree_Node_t;
 }
 
-(** The state type used in the state-error monad *)
-val state : Type0
-
diff --git a/tests/fstar/betree_back_stateful/BetreeMain.TypesExternal.fsti b/tests/fstar/betree_back_stateful/BetreeMain.TypesExternal.fsti
new file mode 100644
index 00000000..1b2c53a6
--- /dev/null
+++ b/tests/fstar/betree_back_stateful/BetreeMain.TypesExternal.fsti
@@ -0,0 +1,10 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [betree_main]: external type declarations *)
+module BetreeMain.TypesExternal
+open Primitives
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
+(** The state type used in the state-error monad *)
+val state : Type0
+
diff --git a/tests/fstar/hashmap_on_disk/HashmapMain.Types.fsti b/tests/fstar/hashmap_on_disk/HashmapMain.Types.fst
index e77954ad..afebcde3 100644
--- a/tests/fstar/hashmap_on_disk/HashmapMain.Types.fsti
+++ b/tests/fstar/hashmap_on_disk/HashmapMain.Types.fst
@@ -2,6 +2,7 @@
 (** [hashmap_main]: type definitions *)
 module HashmapMain.Types
 open Primitives
+include HashmapMain.TypesExternal
 
 #set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
 
@@ -21,6 +22,3 @@ type hashmap_HashMap_t (t : Type0) =
   slots : alloc_vec_Vec (hashmap_List_t t);
 }
 
-(** The state type used in the state-error monad *)
-val state : Type0
-
diff --git a/tests/fstar/hashmap_on_disk/HashmapMain.TypesExternal.fsti b/tests/fstar/hashmap_on_disk/HashmapMain.TypesExternal.fsti
new file mode 100644
index 00000000..75747408
--- /dev/null
+++ b/tests/fstar/hashmap_on_disk/HashmapMain.TypesExternal.fsti
@@ -0,0 +1,10 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [hashmap_main]: external type declarations *)
+module HashmapMain.TypesExternal
+open Primitives
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
+(** The state type used in the state-error monad *)
+val state : Type0
+
diff --git a/tests/fstar/misc/External.Types.fst b/tests/fstar/misc/External.Types.fst
new file mode 100644
index 00000000..4fbcec47
--- /dev/null
+++ b/tests/fstar/misc/External.Types.fst
@@ -0,0 +1,8 @@
+(** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
+(** [external]: type definitions *)
+module External.Types
+open Primitives
+include External.TypesExternal
+
+#set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
+
diff --git a/tests/fstar/misc/External.Types.fsti b/tests/fstar/misc/External.TypesExternal.fsti
index 0cb9fd0e..4bfbe0c5 100644
--- a/tests/fstar/misc/External.Types.fsti
+++ b/tests/fstar/misc/External.TypesExternal.fsti
@@ -1,6 +1,6 @@
 (** THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS *)
-(** [external]: type definitions *)
-module External.Types
+(** [external]: external type declarations *)
+module External.TypesExternal
 open Primitives
 
 #set-options "--z3rlimit 50 --fuel 1 --ifuel 1"
diff --git a/tests/lean/BetreeMain/Types.lean b/tests/lean/BetreeMain/Types.lean
index 6e528437..877508f6 100644
--- a/tests/lean/BetreeMain/Types.lean
+++ b/tests/lean/BetreeMain/Types.lean
@@ -1,6 +1,7 @@
 -- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
 -- [betree_main]: type definitions
 import Base
+import BetreeMain.TypesExternal
 open Primitives
 
 namespace betree_main
@@ -63,7 +64,4 @@ structure betree.BeTree where
   node_id_cnt : betree.NodeIdCounter
   root : betree.Node
 
-/- The state type used in the state-error monad -/
-axiom State : Type
-
 end betree_main
diff --git a/tests/lean/BetreeMain/TypesExternal.lean b/tests/lean/BetreeMain/TypesExternal.lean
new file mode 100644
index 00000000..1701eaaf
--- /dev/null
+++ b/tests/lean/BetreeMain/TypesExternal.lean
@@ -0,0 +1,7 @@
+-- [betree_main]: external types.
+import Base
+open Primitives
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+
diff --git a/tests/lean/BetreeMain/TypesExternal_Template.lean b/tests/lean/BetreeMain/TypesExternal_Template.lean
new file mode 100644
index 00000000..bbac7e99
--- /dev/null
+++ b/tests/lean/BetreeMain/TypesExternal_Template.lean
@@ -0,0 +1,9 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [betree_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes.
+import Base
+open Primitives
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+
diff --git a/tests/lean/External/Types.lean b/tests/lean/External/Types.lean
index 40f20cda..961f3e8a 100644
--- a/tests/lean/External/Types.lean
+++ b/tests/lean/External/Types.lean
@@ -1,15 +1,9 @@
 -- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
 -- [external]: type definitions
 import Base
+import External.TypesExternal
 open Primitives
 
 namespace external
 
-/- [core::num::nonzero::NonZeroU32]
-   Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 -/
-axiom core.num.nonzero.NonZeroU32 : Type
-
-/- The state type used in the state-error monad -/
-axiom State : Type
-
 end external
diff --git a/tests/lean/External/TypesExternal.lean b/tests/lean/External/TypesExternal.lean
new file mode 100644
index 00000000..7c30f792
--- /dev/null
+++ b/tests/lean/External/TypesExternal.lean
@@ -0,0 +1,11 @@
+-- [external]: external types.
+import Base
+open Primitives
+
+/- [core::num::nonzero::NonZeroU32]
+   Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 -/
+axiom core.num.nonzero.NonZeroU32 : Type
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+
diff --git a/tests/lean/External/TypesExternal_Template.lean b/tests/lean/External/TypesExternal_Template.lean
new file mode 100644
index 00000000..85fef236
--- /dev/null
+++ b/tests/lean/External/TypesExternal_Template.lean
@@ -0,0 +1,13 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [external]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes.
+import Base
+open Primitives
+
+/- [core::num::nonzero::NonZeroU32]
+   Source: '/rustc/d59363ad0b6391b7fc5bbb02c9ccf9300eef3753/library/core/src/num/nonzero.rs', lines 50:12-50:33 -/
+axiom core.num.nonzero.NonZeroU32 : Type
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+
diff --git a/tests/lean/HashmapMain/Types.lean b/tests/lean/HashmapMain/Types.lean
index f7be6719..ae9ac999 100644
--- a/tests/lean/HashmapMain/Types.lean
+++ b/tests/lean/HashmapMain/Types.lean
@@ -1,6 +1,7 @@
 -- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
 -- [hashmap_main]: type definitions
 import Base
+import HashmapMain.TypesExternal
 open Primitives
 
 namespace hashmap_main
@@ -19,7 +20,4 @@ structure hashmap.HashMap (T : Type) where
   max_load : Usize
   slots : alloc.vec.Vec (hashmap.List T)
 
-/- The state type used in the state-error monad -/
-axiom State : Type
-
 end hashmap_main
diff --git a/tests/lean/HashmapMain/TypesExternal.lean b/tests/lean/HashmapMain/TypesExternal.lean
new file mode 100644
index 00000000..4e1cdbe9
--- /dev/null
+++ b/tests/lean/HashmapMain/TypesExternal.lean
@@ -0,0 +1,7 @@
+-- [hashmap_main]: external types.
+import Base
+open Primitives
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+
diff --git a/tests/lean/HashmapMain/TypesExternal_Template.lean b/tests/lean/HashmapMain/TypesExternal_Template.lean
new file mode 100644
index 00000000..cfa8bbb1
--- /dev/null
+++ b/tests/lean/HashmapMain/TypesExternal_Template.lean
@@ -0,0 +1,9 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [hashmap_main]: external types.
+-- This is a template file: rename it to "TypesExternal.lean" and fill the holes.
+import Base
+open Primitives
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+