fn init(env: soroban_sdk::Env, admin: soroban_sdk::Address)
fn vote(
env: soroban_sdk::Env,
voter: soroban_sdk::Address,
proposal_id: u32,
approve: bool,
)
fn refund(env: soroban_sdk::Env, borrower: soroban_sdk::Address, amount: i128)
fn balance(env: soroban_sdk::Env, account: soroban_sdk::Address) -> i128
fn deposit(env: soroban_sdk::Env, from: soroban_sdk::Address, amount: i128)
fn withdraw(env: soroban_sdk::Env, to: soroban_sdk::Address, amount: i128)
fn submit_zk_factoring(env: soroban_sdk::Env, borrower: soroban_sdk::Address)