Add example of new synatx cairo contract

__mocks__/cairo/helloCairo2/hello.cairo

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+use array::ArrayTrait;
+use array::SpanTrait;
+use option::OptionTrait;
+use traits::TryInto;
+use serde::Serde;
+
+// bet part
+use starknet::ContractAddress;
+use starknet::get_caller_address;
+use starknet::StorageAccess;
+use starknet::storage_access;
+use starknet::StorageBaseAddress;
+use starknet::SyscallResult;
+use starknet::storage_read_syscall;
+use starknet::storage_write_syscall;
+use starknet::storage_address_from_base_and_offset;
+use starknet::storage_base_address_from_felt252;
+
+use traits::Into;
+use starknet::storage_access::StorageAddressSerde;
+use box::BoxTrait;
+// end bet part
+
+#[derive(Copy, Drop, Serde)]
+struct Foo {
+    val: felt252
+}
+
+// Complex Structs
+#[derive(Copy, Drop, Serde, storage_access::StorageAccess)]
+struct UserData {
+    address: ContractAddress,
+    is_claimed: bool,
+}
+
+#[derive(Copy, Drop, Serde, storage_access::StorageAccess)]
+struct Bet {
+    name: felt252,
+    description: felt252,
+    expire_date: u64,
+    creation_time: u64,
+    creator: ContractAddress,
+    is_cancelled: bool,
+    is_voted: bool,
+    bettor: UserData,
+    counter_bettor: UserData,
+    winner: bool,
+    pool: u256,
+    amount: u256,
+}
+
+
+#[starknet::interface]
+trait IHelloStarknet<TContractState> {
+    // Felt252 test.
+    fn increase_balance(ref self: TContractState, amount: felt252);
+    fn get_balance(self: @TContractState) -> felt252;
+    // Bool Test
+    fn set_status(ref self: TContractState, new_status: bool);
+    fn get_status(self: @TContractState) -> bool;
+
+    // ContractAddress
+    fn set_ca(ref self: TContractState, address: ContractAddress);
+    fn get_ca(self: @TContractState) -> ContractAddress;
+
+    // u8 Test.
+    fn increase_balance_u8(ref self: TContractState, amount: u8);
+    fn get_balance_u8(self: @TContractState) -> u8;
+
+    fn test_u16(self: @TContractState, p1: u16) -> u16;
+    fn test_u32(self: @TContractState, p1: u32) -> u32;
+    fn test_u64(self: @TContractState, p1: u64) -> u64;
+
+    fn test_u128(self: @TContractState, p1: u128) -> u128;
+    fn test_u256(self: @TContractState, p1: u256) -> u256;
+
+    // echo Array
+    fn echo_array(self: @TContractState, data: Array<u8>) -> Array<u8>;
+    fn echo_array_u256(self: @TContractState, data: Array<u256>) -> Array<u256>;
+    fn echo_array_bool(self: @TContractState, data: Array<bool>) -> Array<bool>;
+    // unamed Tuple
+    fn echo_un_tuple(self: @TContractState, a: (felt252, u16)) -> (felt252, u16);
+    // echo Struct
+    fn echo_struct(self: @TContractState, tt: Foo) -> Foo;
+    fn set_bet(ref self: TContractState);
+
+    fn get_bet(self: @TContractState, test: felt252) -> Bet;
+    fn set_user1(ref self: TContractState, user: UserData);
+    fn get_user1(self: @TContractState) -> UserData;
+    // this method is required so that ABI have UserData definition in structs
+    fn get_user(self: @TContractState) -> UserData;
+    // Nested Array 2d
+    fn array2d_ex(ref self: TContractState, test: Array<Array<felt252>>) -> felt252;
+    fn array2d_array(self: @TContractState, test: Array<Array<felt252>>) -> Array<Array<felt252>>;
+
+    fn array2d_felt(self: @TContractState, test: Array<Array<felt252>>) -> felt252;
+    // req tuple(array) ret tuple(array)
+    fn tuple_echo(
+        self: @TContractState, a: (core::array::Array::<felt252>, core::array::Array::<felt252>)
+    ) -> (core::array::Array::<felt252>, core::array::Array::<felt252>);
+
+    // mix req (array,bool) ret tuple(array,bool)
+    fn array_bool_tuple(
+        self: @TContractState, a: core::array::Array::<felt252>, b: bool
+    ) -> (core::array::Array::<felt252>, bool);
+
+    // used for changes to redeclare contract
+    fn array2ddd_felt(self: @TContractState, testdd: Array<Array<felt252>>) -> felt252;
+}
+
+// MAIN APP
+#[starknet::contract]
+mod HelloStarknet {
+    //  libs
+    use array::ArrayTrait;
+    use array::SpanTrait;
+    use option::OptionTrait;
+    use traits::TryInto;
+    use serde::Serde;
+    use clone::Clone;
+
+    // bet part
+    use starknet::ContractAddress;
+    use starknet::get_caller_address;
+    use starknet::StorageAccess;
+    use starknet::storage_access;
+    use starknet::StorageBaseAddress;
+    use starknet::SyscallResult;
+    use starknet::storage_read_syscall;
+    use starknet::storage_write_syscall;
+    use starknet::storage_address_from_base_and_offset;
+    use starknet::storage_base_address_from_felt252;
+
+    use traits::Into;
+    use starknet::storage_access::StorageAddressSerde;
+    use box::BoxTrait;
+
+    //bet
+    use super::Bet;
+    use super::UserData;
+    use super::Foo;
+
+    #[storage]
+    struct Storage {
+        balance: felt252,
+        balance_u8: u8,
+        status: bool,
+        ca: ContractAddress,
+        testbet: Bet,
+        user: UserData,
+        user1: UserData,
+    }
+
+    #[external(v0)]
+    impl IHelloStarknetImpl of super::IHelloStarknet<ContractState> {
+        // Felt252 test.
+        fn increase_balance(ref self: ContractState, amount: felt252) {
+            self.balance.write(self.balance.read() + amount);
+        }
+
+        fn get_balance(self: @ContractState) -> felt252 {
+            self.balance.read()
+        }
+
+        // Bool Test
+        fn set_status(ref self: ContractState, new_status: bool) {
+            self.status.write(new_status);
+        }
+
+        fn get_status(self: @ContractState) -> bool {
+            self.status.read()
+        }
+
+        // ContractAddress
+        fn set_ca(ref self: ContractState, address: ContractAddress) {
+            self.ca.write(address);
+        }
+
+        fn get_ca(self: @ContractState) -> ContractAddress {
+            self.ca.read()
+        }
+
+        // u8 Test.
+        fn increase_balance_u8(ref self: ContractState, amount: u8) {
+            self.balance_u8.write(self.balance_u8.read() + amount);
+        }
+
+        fn get_balance_u8(self: @ContractState) -> u8 {
+            self.balance_u8.read()
+        }
+
+        fn test_u16(self: @ContractState, p1: u16) -> u16 {
+            p1 + 1_u16
+        }
+
+        fn test_u32(self: @ContractState, p1: u32) -> u32 {
+            p1 + 1_u32
+        }
+
+        fn test_u64(self: @ContractState, p1: u64) -> u64 {
+            p1 + 1_u64
+        }
+
+        fn test_u128(self: @ContractState, p1: u128) -> u128 {
+            p1 + 1_u128
+        }
+
+        fn test_u256(self: @ContractState, p1: u256) -> u256 {
+            let to_add = u256 { low: 1_u128, high: 0_u128 };
+            p1 + to_add
+        }
+
+        // echo Array
+        fn echo_array(self: @ContractState, data: Array<u8>) -> Array<u8> {
+            data
+        }
+
+        fn echo_array_u256(self: @ContractState, data: Array<u256>) -> Array<u256> {
+            data
+        }
+
+        fn echo_array_bool(self: @ContractState, data: Array<bool>) -> Array<bool> {
+            data
+        }
+
+        // unamed Tuple
+        fn echo_un_tuple(self: @ContractState, a: (felt252, u16)) -> (felt252, u16) {
+            a
+        }
+
+        // echo Struct
+        fn echo_struct(self: @ContractState, tt: Foo) -> Foo {
+            tt
+        }
+
+        fn set_bet(ref self: ContractState) {
+            let sender = get_caller_address();
+            let user = UserData { address: sender, is_claimed: false };
+            self
+                .testbet
+                .write(
+                    Bet {
+                        name: 'test',
+                        description: 'dec',
+                        expire_date: 1_u64,
+                        creation_time: 1_u64,
+                        creator: sender,
+                        is_cancelled: false,
+                        is_voted: false,
+                        bettor: user,
+                        counter_bettor: user,
+                        winner: false,
+                        pool: u256 {
+                            low: 10_u128, high: 0_u128
+                            }, amount: u256 {
+                            low: 1000_u128, high: 0_u128
+                        }
+                    }
+                );
+        }
+
+        fn get_bet(self: @ContractState, test: felt252) -> Bet {
+            self.testbet.read()
+        }
+
+        fn set_user1(ref self: ContractState, user: UserData) {
+            self.user1.write(user);
+        }
+
+        fn get_user1(self: @ContractState) -> UserData {
+            self.user1.read()
+        }
+
+        // this method is required so that ABI have UserData definition in structs
+        fn get_user(self: @ContractState) -> UserData {
+            self.user.read()
+        }
+
+        // Nested Array 2d
+        fn array2d_ex(ref self: ContractState, test: Array<Array<felt252>>) -> felt252 {
+            return *(test.at(0_u32)).at(0_u32);
+        }
+
+        fn array2d_array(
+            self: @ContractState, test: Array<Array<felt252>>
+        ) -> Array<Array<felt252>> {
+            return test;
+        }
+
+        fn array2d_felt(self: @ContractState, test: Array<Array<felt252>>) -> felt252 {
+            return *(test.at(0_u32)).at(0_u32);
+        }
+
+        // req tuple(array) ret tuple(array)
+        fn tuple_echo(
+            self: @ContractState, a: (core::array::Array::<felt252>, core::array::Array::<felt252>)
+        ) -> (core::array::Array::<felt252>, core::array::Array::<felt252>) {
+            a
+        }
+
+        // mix req (array,bool) ret tuple(array,bool)
+        fn array_bool_tuple(
+            self: @ContractState, a: core::array::Array::<felt252>, b: bool
+        ) -> (core::array::Array::<felt252>, bool) {
+            let mut a = a.clone();
+            a.append(1);
+            a.append(2);
+            (a, b)
+        }
+
+        // used for changes to redeclare contract
+        fn array2ddd_felt(self: @ContractState, testdd: Array<Array<felt252>>) -> felt252 {
+            return *(testdd.at(0_u32)).at(0_u32);
+        }
+    }
+}