diff --git a/examples/adder/src/lib.rs b/examples/adder/src/lib.rs
index 7cb39dd6f..1e0b68e66 100644
--- a/examples/adder/src/lib.rs
+++ b/examples/adder/src/lib.rs
@@ -1,27 +1,19 @@
-use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
-use near_sdk::serde::{Deserialize, Serialize};
-use near_sdk::{near_bindgen, NearSchema};
+use near_sdk::near;
 
-#[derive(NearSchema, Serialize, Deserialize, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
-#[serde(crate = "near_sdk::serde")]
-#[abi(json, borsh)]
+#[near(serializers=[borsh, json])]
 pub struct Pair(u32, u32);
 
-#[derive(NearSchema, Serialize, Deserialize)]
-#[serde(crate = "near_sdk::serde")]
-#[abi(json, borsh)]
+#[near(serializers=[borsh, json])]
 pub struct DoublePair {
     first: Pair,
     second: Pair,
 }
 
-#[near_bindgen]
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh, json, bindgen])]
 pub struct Adder {}
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl Adder {
     /// Adds two pairs point-wise.
     pub fn add(&self, a: Pair, b: Pair) -> Pair {
diff --git a/examples/callback-results/src/lib.rs b/examples/callback-results/src/lib.rs
index f94302b34..85f7d2bf7 100644
--- a/examples/callback-results/src/lib.rs
+++ b/examples/callback-results/src/lib.rs
@@ -1,12 +1,12 @@
 use near_sdk::require;
-use near_sdk::{env, near_bindgen, Promise, PromiseError};
+use near_sdk::{env, near, Promise, PromiseError};
 
 const A_VALUE: u8 = 8;
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 pub struct Callback;
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl Callback {
     /// Call functions a, b, and c asynchronously and handle results with `handle_callbacks`.
     pub fn call_all(fail_b: bool, c_value: u8, d_value: u8) -> Promise {
diff --git a/examples/cross-contract-calls/high-level/src/lib.rs b/examples/cross-contract-calls/high-level/src/lib.rs
index b14eb1401..803929ceb 100644
--- a/examples/cross-contract-calls/high-level/src/lib.rs
+++ b/examples/cross-contract-calls/high-level/src/lib.rs
@@ -1,13 +1,12 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::env;
-use near_sdk::{log, near_bindgen, PromiseOrValue};
+use near_sdk::{log, near, PromiseOrValue};
 
-#[near_bindgen]
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh, bindgen])]
 pub struct CrossContract {}
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl CrossContract {
     pub fn factorial(&self, n: u32) -> PromiseOrValue<u32> {
         if n <= 1 {
diff --git a/examples/cross-contract-calls/low-level/src/lib.rs b/examples/cross-contract-calls/low-level/src/lib.rs
index 58129a150..44533aed2 100644
--- a/examples/cross-contract-calls/low-level/src/lib.rs
+++ b/examples/cross-contract-calls/low-level/src/lib.rs
@@ -1,6 +1,6 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::serde_json;
-use near_sdk::{env, near_bindgen, require, Gas, NearToken, PromiseResult};
+use near_sdk::{env, near, require, Gas, NearToken, PromiseResult};
 
 // Prepaid gas for a single (not inclusive of recursion) `factorial` call.
 const FACTORIAL_CALL_GAS: Gas = Gas::from_tgas(20);
@@ -8,12 +8,11 @@ const FACTORIAL_CALL_GAS: Gas = Gas::from_tgas(20);
 // Prepaid gas for a single `factorial_mult` call.
 const FACTORIAL_MULT_CALL_GAS: Gas = Gas::from_tgas(10);
 
-#[near_bindgen]
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh, bindgen])]
 pub struct CrossContract {}
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl CrossContract {
     pub fn factorial(&self, n: u32) {
         if n <= 1 {
diff --git a/examples/factory-contract/high-level/src/lib.rs b/examples/factory-contract/high-level/src/lib.rs
index bbfed725b..e7770512c 100644
--- a/examples/factory-contract/high-level/src/lib.rs
+++ b/examples/factory-contract/high-level/src/lib.rs
@@ -1,10 +1,9 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::PromiseError;
-use near_sdk::{env, ext_contract, near_bindgen, AccountId, NearToken, Promise};
+use near_sdk::{env, ext_contract, near, AccountId, NearToken, Promise};
 
-#[near_bindgen]
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh, bindgen])]
 pub struct FactoryContract {}
 
 // If the `ext_contract` name is not provided explicitly, the namespace for generated methods is
@@ -15,7 +14,7 @@ pub trait ExtStatusMessage {
     fn get_status(&self, account_id: AccountId) -> Option<String>;
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FactoryContract {
     pub fn deploy_status_message(&self, account_id: AccountId, amount: NearToken) {
         Promise::new(account_id)
diff --git a/examples/factory-contract/low-level/src/lib.rs b/examples/factory-contract/low-level/src/lib.rs
index 403f629a4..d69c92c95 100644
--- a/examples/factory-contract/low-level/src/lib.rs
+++ b/examples/factory-contract/low-level/src/lib.rs
@@ -1,17 +1,16 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::json_types::U128;
 use near_sdk::serde_json;
-use near_sdk::{env, near_bindgen, AccountId, Gas, NearToken, PromiseResult};
+use near_sdk::{env, near, AccountId, Gas, NearToken, PromiseResult};
 
 // Prepaid gas for making a single simple call.
 const SINGLE_CALL_GAS: Gas = Gas::from_tgas(20);
 
-#[near_bindgen]
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh, bindgen])]
 pub struct FactoryContract {}
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FactoryContract {
     pub fn deploy_status_message(&self, account_id: AccountId, amount: U128) {
         let promise_idx = env::promise_batch_create(&account_id);
diff --git a/examples/fungible-token/ft/src/lib.rs b/examples/fungible-token/ft/src/lib.rs
index baf7dc3f9..8a5b7e149 100644
--- a/examples/fungible-token/ft/src/lib.rs
+++ b/examples/fungible-token/ft/src/lib.rs
@@ -28,13 +28,12 @@ use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::collections::LazyOption;
 use near_sdk::json_types::U128;
 use near_sdk::{
-    env, log, near_bindgen, require, AccountId, BorshStorageKey, NearToken, PanicOnDefault,
+    env, log, near, require, AccountId, BorshStorageKey, NearToken, PanicOnDefault,
     PromiseOrValue,
 };
 
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize, PanicOnDefault)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(PanicOnDefault)]
+#[near(serializers=[borsh, bindgen])]
 pub struct Contract {
     token: FungibleToken,
     metadata: LazyOption<FungibleTokenMetadata>,
@@ -42,14 +41,14 @@ pub struct Contract {
 
 const DATA_IMAGE_SVG_NEAR_ICON: &str = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 288 288'%3E%3Cg id='l' data-name='l'%3E%3Cpath d='M187.58,79.81l-30.1,44.69a3.2,3.2,0,0,0,4.75,4.2L191.86,103a1.2,1.2,0,0,1,2,.91v80.46a1.2,1.2,0,0,1-2.12.77L102.18,77.93A15.35,15.35,0,0,0,90.47,72.5H87.34A15.34,15.34,0,0,0,72,87.84V201.16A15.34,15.34,0,0,0,87.34,216.5h0a15.35,15.35,0,0,0,13.08-7.31l30.1-44.69a3.2,3.2,0,0,0-4.75-4.2L96.14,186a1.2,1.2,0,0,1-2-.91V104.61a1.2,1.2,0,0,1,2.12-.77l89.55,107.23a15.35,15.35,0,0,0,11.71,5.43h3.13A15.34,15.34,0,0,0,216,201.16V87.84A15.34,15.34,0,0,0,200.66,72.5h0A15.35,15.35,0,0,0,187.58,79.81Z'/%3E%3C/g%3E%3C/svg%3E";
 
-#[derive(BorshSerialize, BorshStorageKey)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(BorshStorageKey)]
+#[near(serializers=[borsh])]
 enum StorageKey {
     FungibleToken,
     Metadata,
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl Contract {
     /// Initializes the contract with the given total supply owned by the given `owner_id` with
     /// default metadata (for example purposes only).
@@ -94,7 +93,7 @@ impl Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FungibleTokenCore for Contract {
     #[payable]
     fn ft_transfer(&mut self, receiver_id: AccountId, amount: U128, memo: Option<String>) {
@@ -121,7 +120,7 @@ impl FungibleTokenCore for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FungibleTokenResolver for Contract {
     #[private]
     fn ft_resolve_transfer(
@@ -139,7 +138,7 @@ impl FungibleTokenResolver for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl StorageManagement for Contract {
     #[payable]
     fn storage_deposit(
@@ -175,7 +174,7 @@ impl StorageManagement for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FungibleTokenMetadataProvider for Contract {
     fn ft_metadata(&self) -> FungibleTokenMetadata {
         self.metadata.get().unwrap()
diff --git a/examples/lockable-fungible-token/src/lib.rs b/examples/lockable-fungible-token/src/lib.rs
index 150677431..965e64253 100644
--- a/examples/lockable-fungible-token/src/lib.rs
+++ b/examples/lockable-fungible-token/src/lib.rs
@@ -1,12 +1,12 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::collections::UnorderedMap;
-use near_sdk::{env, json_types::U128, near_bindgen, AccountId, PanicOnDefault};
+use near_sdk::{env, json_types::U128, near, AccountId, PanicOnDefault};
 use std::collections::HashMap;
 
 type Balance = u128;
 
-#[derive(Default, BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(Default)]
+#[near(serializers=[borsh])]
 pub struct Account {
     /// Current unlocked balance
     pub balance: Balance,
@@ -46,9 +46,8 @@ impl Account {
     }
 }
 
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize, PanicOnDefault)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(PanicOnDefault)]
+#[near(serializers=[borsh, bindgen])]
 pub struct FunToken {
     /// AccountID -> Account details.
     pub accounts: UnorderedMap<AccountId, Account>,
@@ -57,7 +56,7 @@ pub struct FunToken {
     pub total_supply: Balance,
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl FunToken {
     #[init]
     #[handle_result]
diff --git a/examples/mission-control/src/account.rs b/examples/mission-control/src/account.rs
index 0775dc97a..fecadc3d3 100644
--- a/examples/mission-control/src/account.rs
+++ b/examples/mission-control/src/account.rs
@@ -4,7 +4,6 @@ use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use std::ops;
-use near_sdk::NearSchema;
 
 use near_sdk::near;
 
@@ -16,7 +15,6 @@ use near_sdk::near;
     Clone,
     Copy,
     Debug,
-    NearSchema,
 )]
 #[near(serializers = [json, borsh])]
 pub struct Quantity(pub i32);
@@ -24,7 +22,7 @@ pub struct Quantity(pub i32);
 #[near]
 pub struct X;
 
-#[derive(Clone, NearSchema)]
+#[derive(Clone)]
 #[near(serializers = [json, borsh])]
 pub struct Account(pub HashMap<Asset, Quantity>);
 
diff --git a/examples/mission-control/src/agent.rs b/examples/mission-control/src/agent.rs
index 92b6f1d66..81de55de4 100644
--- a/examples/mission-control/src/agent.rs
+++ b/examples/mission-control/src/agent.rs
@@ -1,8 +1,6 @@
 use crate::account::*;
 use crate::asset::*;
 use crate::rate::*;
-use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
-use near_sdk::serde::{Deserialize, Serialize};
 use std::collections::HashMap;
 use near_sdk::near;
 
diff --git a/examples/mission-control/src/asset.rs b/examples/mission-control/src/asset.rs
index 0b5626a2e..87a65fcdf 100644
--- a/examples/mission-control/src/asset.rs
+++ b/examples/mission-control/src/asset.rs
@@ -1,4 +1,3 @@
-use near_sdk::NearSchema;
 use near_sdk::near;
 
 #[derive(
@@ -9,7 +8,6 @@ use near_sdk::near;
     Hash,
     Clone,
     Copy,
-    NearSchema,
 )]
 #[near(serializers = [json, borsh])]
 pub enum Resource {
@@ -27,7 +25,6 @@ pub enum Resource {
     Hash,
     Clone,
     Copy,
-    NearSchema,
 )]
 #[near(serializers = [json, borsh])]
 pub enum Reward {
@@ -46,7 +43,6 @@ pub enum Reward {
     Hash,
     Clone,
     Copy,
-    NearSchema,
 )]
 #[near(serializers = [json, borsh])]
 pub enum Asset {
@@ -62,7 +58,6 @@ pub enum Asset {
     Hash,
     PartialOrd,
     Ord,
-    NearSchema
 )]
 #[near(serializers = [json, borsh])]
 pub enum Exchange {
diff --git a/examples/mission-control/src/mission_control.rs b/examples/mission-control/src/mission_control.rs
index e3b2f2a34..a1625490b 100644
--- a/examples/mission-control/src/mission_control.rs
+++ b/examples/mission-control/src/mission_control.rs
@@ -3,8 +3,6 @@ use crate::agent::Agent;
 use crate::asset::*;
 use crate::rate::*;
 use near_sdk::AccountId;
-use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
-use near_sdk::serde::{Deserialize, Serialize};
 use near_sdk::{env, near_bindgen};
 use std::collections::HashMap;
 use near_sdk::near;
diff --git a/examples/non-fungible-token/nft/src/lib.rs b/examples/non-fungible-token/nft/src/lib.rs
index da8192545..4a824d05c 100644
--- a/examples/non-fungible-token/nft/src/lib.rs
+++ b/examples/non-fungible-token/nft/src/lib.rs
@@ -29,13 +29,12 @@ use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::collections::LazyOption;
 use near_sdk::json_types::U128;
 use near_sdk::{
-    env, near_bindgen, require, AccountId, BorshStorageKey, PanicOnDefault, Promise, PromiseOrValue,
+    env, near, require, AccountId, BorshStorageKey, PanicOnDefault, Promise, PromiseOrValue,
 };
 use std::collections::HashMap;
 
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize, PanicOnDefault)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(PanicOnDefault)]
+#[near(serializers=[borsh, bindgen])]
 pub struct Contract {
     tokens: NonFungibleToken,
     metadata: LazyOption<NFTContractMetadata>,
@@ -43,8 +42,8 @@ pub struct Contract {
 
 const DATA_IMAGE_SVG_NEAR_ICON: &str = "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 288 288'%3E%3Cg id='l' data-name='l'%3E%3Cpath d='M187.58,79.81l-30.1,44.69a3.2,3.2,0,0,0,4.75,4.2L191.86,103a1.2,1.2,0,0,1,2,.91v80.46a1.2,1.2,0,0,1-2.12.77L102.18,77.93A15.35,15.35,0,0,0,90.47,72.5H87.34A15.34,15.34,0,0,0,72,87.84V201.16A15.34,15.34,0,0,0,87.34,216.5h0a15.35,15.35,0,0,0,13.08-7.31l30.1-44.69a3.2,3.2,0,0,0-4.75-4.2L96.14,186a1.2,1.2,0,0,1-2-.91V104.61a1.2,1.2,0,0,1,2.12-.77l89.55,107.23a15.35,15.35,0,0,0,11.71,5.43h3.13A15.34,15.34,0,0,0,216,201.16V87.84A15.34,15.34,0,0,0,200.66,72.5h0A15.35,15.35,0,0,0,187.58,79.81Z'/%3E%3C/g%3E%3C/svg%3E";
 
-#[derive(BorshSerialize, BorshStorageKey)]
-#[borsh(crate = "near_sdk::borsh")]
+#[derive(BorshStorageKey)]
+#[near]
 enum StorageKey {
     NonFungibleToken,
     Metadata,
@@ -53,7 +52,7 @@ enum StorageKey {
     Approval,
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl Contract {
     /// Initializes the contract owned by `owner_id` with
     /// default metadata (for example purposes only).
@@ -109,7 +108,7 @@ impl Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl NonFungibleTokenCore for Contract {
     #[payable]
     fn nft_transfer(
@@ -139,7 +138,7 @@ impl NonFungibleTokenCore for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl NonFungibleTokenResolver for Contract {
     #[private]
     fn nft_resolve_transfer(
@@ -158,7 +157,7 @@ impl NonFungibleTokenResolver for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl NonFungibleTokenApproval for Contract {
     #[payable]
     fn nft_approve(
@@ -190,7 +189,7 @@ impl NonFungibleTokenApproval for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl NonFungibleTokenEnumeration for Contract {
     fn nft_total_supply(&self) -> U128 {
         self.tokens.nft_total_supply()
@@ -214,7 +213,7 @@ impl NonFungibleTokenEnumeration for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl NonFungibleTokenMetadataProvider for Contract {
     fn nft_metadata(&self) -> NFTContractMetadata {
         self.metadata.get().unwrap()
diff --git a/examples/status-message/src/lib.rs b/examples/status-message/src/lib.rs
index 6283a0f1d..29102d7b0 100644
--- a/examples/status-message/src/lib.rs
+++ b/examples/status-message/src/lib.rs
@@ -1,14 +1,13 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::store::LookupMap;
-use near_sdk::{env, log, near_bindgen, AccountId, BorshStorageKey};
+use near_sdk::{env, log, near, AccountId, BorshStorageKey};
+
+#[derive(BorshStorageKey)]
+#[near(serializers=[borsh])]
 
-#[derive(BorshSerialize, BorshStorageKey)]
-#[borsh(crate = "near_sdk::borsh")]
 struct RecordsKey;
 
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[near(serializers=[borsh, bindgen])]
 pub struct StatusMessage {
     records: LookupMap<AccountId, String>,
 }
@@ -19,7 +18,7 @@ impl Default for StatusMessage {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl StatusMessage {
     #[payable]
     pub fn set_status(&mut self, message: String) {
diff --git a/examples/test-contract/src/lib.rs b/examples/test-contract/src/lib.rs
index 611a7b3b9..95dcfc5b4 100644
--- a/examples/test-contract/src/lib.rs
+++ b/examples/test-contract/src/lib.rs
@@ -1,9 +1,6 @@
-use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
-use near_sdk::{env, near_bindgen};
+use near_sdk::{env, near};
 
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[near(serializers=[borsh, bindgen])]
 pub struct TestContract {}
 
 impl Default for TestContract {
@@ -12,7 +9,7 @@ impl Default for TestContract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl TestContract {
     #[init]
     pub fn new() -> Self {
@@ -21,8 +18,7 @@ impl TestContract {
 
     #[init(ignore_state)]
     pub fn migrate_state() -> Self {
-        #[derive(BorshDeserialize)]
-        #[borsh(crate = "near_sdk::borsh")]
+        #[near]
         struct OldContract {
             // ...
         }
diff --git a/examples/versioned/src/lib.rs b/examples/versioned/src/lib.rs
index c3019396e..10978526c 100644
--- a/examples/versioned/src/lib.rs
+++ b/examples/versioned/src/lib.rs
@@ -1,13 +1,11 @@
 use near_sdk::borsh::{BorshDeserialize, BorshSerialize};
 use near_sdk::store::UnorderedMap;
-use near_sdk::{env, log, near_bindgen, AccountId, NearToken};
+use near_sdk::{env, log, near, AccountId, NearToken};
 
 /// An example of a versioned contract. This is a simple contract that tracks how much
 /// each account deposits into the contract. In v1, a nonce is added to state which increments
 /// after each successful deposit.
-#[near_bindgen]
-#[derive(BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[near(serializers=[borsh, bindgen])]
 pub enum VersionedContract {
     V0(ContractV0),
     V1(Contract),
@@ -47,8 +45,7 @@ impl Default for VersionedContract {
     }
 }
 
-#[derive(BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[near]
 pub struct ContractV0 {
     funders: UnorderedMap<AccountId, NearToken>,
 }
@@ -59,8 +56,7 @@ impl Default for ContractV0 {
     }
 }
 
-#[derive(BorshDeserialize, BorshSerialize)]
-#[borsh(crate = "near_sdk::borsh")]
+#[near]
 pub struct Contract {
     funders: UnorderedMap<AccountId, NearToken>,
     nonce: u64,
@@ -72,7 +68,7 @@ impl Default for Contract {
     }
 }
 
-#[near_bindgen]
+#[near(serializers=[bindgen])]
 impl VersionedContract {
     #[payable]
     pub fn deposit(&mut self) {
diff --git a/near-sdk-macros/src/lib.rs b/near-sdk-macros/src/lib.rs
index d31e91571..76130880c 100644
--- a/near-sdk-macros/src/lib.rs
+++ b/near-sdk-macros/src/lib.rs
@@ -171,8 +171,8 @@ pub fn near(attr: TokenStream, item: TokenStream) -> TokenStream {
 
     
 
-    eprintln!("{}", expanded);
-    eprintln!("mynear");
+    // eprintln!("{}", expanded);
+    // eprintln!("mynear");
 
     TokenStream::from(expanded)
 }
@@ -305,11 +305,11 @@ pub fn near_bindgen(attr: TokenStream, item: TokenStream) -> TokenStream {
         #[cfg(not(feature = "__abi-embed-checked"))]
         let abi_embedded = quote! {};
 
-        eprintln!("ext structs:\n {}", ext_gen);
-        eprintln!("abi embedded:\n {}", abi_embedded);
-        eprintln!("metadata:\n {}", metadata);
-        eprintln!("metadata_impl_gen:\n {}", metadata_impl_gen);
-        eprintln!("finish");
+        // eprintln!("ext structs:\n {}", ext_gen);
+        // eprintln!("abi embedded:\n {}", abi_embedded);
+        // eprintln!("metadata:\n {}", metadata);
+        // eprintln!("metadata_impl_gen:\n {}", metadata_impl_gen);
+        // eprintln!("finish");
 
         TokenStream::from(quote! {
             #input
@@ -397,8 +397,8 @@ pub fn near_bindgen(attr: TokenStream, item: TokenStream) -> TokenStream {
         #[cfg(not(feature = "__abi-embed-checked"))]
         let abi_embedded = quote! {};
 
-        eprintln!("impl is: {}", x);
-        eprintln!("finish impl");
+        // eprintln!("impl is: {}", x);
+        // eprintln!("finish impl");
         TokenStream::from(quote! {
             #x
             // #abi_embedded
@@ -441,10 +441,10 @@ fn process_impl_block(
     // Add wrapper methods for ext call API
     let ext_generated_code = item_impl_info.generate_ext_wrapper_code();
 
-    eprintln!("{}", quote! {
-        #ext_generated_code
-    });
-    eprintln!("process_impl_block");
+    // eprintln!("{}", quote! {
+    //     #ext_generated_code
+    // });
+    // eprintln!("process_impl_block");
 
     Ok(TokenStream::from(quote! {
         #ext_generated_code