fn owner(env: soroban_sdk::Env) -> soroban_sdk::Address
fn token(env: soroban_sdk::Env) -> soroban_sdk::Address
fn balance(env: soroban_sdk::Env) -> i128
fn deposit(env: soroban_sdk::Env, from: soroban_sdk::Address, amount: i128)
fn withdraw(env: soroban_sdk::Env) -> i128
fn unlock_at(env: soroban_sdk::Env) -> u64
fn __constructor(
env: soroban_sdk::Env,
owner: soroban_sdk::Address,
token: soroban_sdk::Address,
unlock_at: u64,
)
fn is_unlockable(env: soroban_sdk::Env) -> bool