Refresh gift_card and hello_world examples.

examples/acceptance_tests/054/lib/tests.ak

@@ -1,6 +1,6 @@
-use aiken/transaction/value
+use cardano/assets
 
 test test_quantity_of_1() {
-  let x = value.from_asset(#"000000", #"000020e05363726970744f776e6572", -1)
-  value.quantity_of(x, #"000000", #"000020e05363726970744f776e6572") < 0
+  let x = assets.from_asset(#"000000", #"000020e05363726970744f776e6572", -1)
+  assets.quantity_of(x, #"000000", #"000020e05363726970744f776e6572") < 0
 }

examples/acceptance_tests/067/lib/tests.ak

@@ -1,7 +1,7 @@
-use aiken/bytearray.{from_string}
-use aiken/hash.{Hash, Sha2_256, sha2_256}
-use aiken/list
+use aiken/collection/list
+use aiken/crypto.{Hash, Sha2_256, sha2_256}
 use aiken/option.{choice, is_none}
+use aiken/primitive/bytearray.{from_string}
 
 // Construction of the merkle tree shouldn't be done by hand, but via
 // 'from_list'.

examples/acceptance_tests/068/lib/tests.ak

@@ -1,7 +1,6 @@
-use aiken/bytearray
-use aiken/dict.{Dict}
-use aiken/hash.{Blake2b_224, Hash}
-use aiken/transaction/credential.{Script}
+use aiken/collection/dict.{Dict}
+use aiken/crypto.{Blake2b_224, Hash, Script}
+use aiken/primitive/bytearray
 
 pub type PolicyId =
   Hash<Blake2b_224, Script>
@@ -13,9 +12,7 @@ pub opaque type Value {
   inner: Dict<PolicyId, Dict<AssetName, Int>>,
 }
 
-pub fn zero() -> Value {
-  Value { inner: dict.new() }
-}
+pub const zero: Value = Value { inner: dict.empty }
 
 pub fn from_asset(
   policy_id: PolicyId,
@@ -23,9 +20,9 @@ pub fn from_asset(
   quantity: Int,
 ) -> Value {
   let asset =
-    dict.new()
+    dict.empty
       |> dict.insert(asset_name, quantity)
-  dict.new()
+  dict.empty
     |> dict.insert(policy_id, asset)
     |> Value
 }
@@ -86,12 +83,12 @@ pub fn flatten_with(
 }
 
 test flatten_with_1() {
-  flatten_with(zero(), fn(p, a, q) { Some((p, a, q)) }) == []
+  flatten_with(zero, fn(p, a, q) { Some((p, a, q)) }) == []
 }
 
 test flatten_with_2() {
   let v =
-    zero()
+    zero
       |> add(from_asset("a", "1", 14))
       |> add(from_asset("b", "", 42))
       |> add(from_asset("a", "2", 42))

examples/acceptance_tests/074/lib/tests.ak

@@ -1,7 +1,7 @@
-use aiken/bytearray.{from_string}
-use aiken/hash.{Hash, Sha2_256, sha2_256}
-use aiken/list
+use aiken/collection/list
+use aiken/crypto.{Hash, Sha2_256, sha2_256}
 use aiken/option.{choice, is_none}
+use aiken/primitive/bytearray.{from_string}
 
 /// Variant of MerkleTree with only hash but without actual value
 pub type MerkleTree<a> {

examples/acceptance_tests/084/lib/tests.ak

@@ -1,6 +1,6 @@
 use aiken/builtin.{snd_pair}
 use aiken/cbor
-use aiken/list
+use aiken/collection/list
 
 test tuple_when() {
   let items =

examples/acceptance_tests/089/validators/test2.ak

@@ -1,6 +1,6 @@
 use aiken/collection/list
-use cardano/assets
 use cardano/address.{Address, VerificationKey}
+use cardano/assets
 use cardano/transaction.{Input, NoDatum, Output, OutputReference, Transaction}
 
 pub const own_hash = #"01020304050607080910111213140102030405060708091011121314"
@@ -46,7 +46,7 @@ test test_simple_oneshot() {
   let output =
     Output {
       address: beneficiary_address(),
-      value: assets.zero(),
+      value: assets.zero,
       datum: NoDatum,
       reference_script: None,
     }
@@ -59,7 +59,7 @@ test test_simple_oneshot() {
 
   let tx =
     Transaction {
-      ..transaction.placeholder(),
+      ..transaction.placeholder,
       mint: mint,
       extra_signatories: [other_hash],
       inputs: [input],

examples/acceptance_tests/099/lib/bar.ak

@@ -1,4 +1,4 @@
-use aiken/list.{count as my_count} as native_list
+use aiken/collection/list.{count as my_count} as native_list
 
 test thing_1() {
   let x =