fn init(env: soroban_sdk::Env)
fn set_plan(
env: soroban_sdk::Env,
initiator: soroban_sdk::Address,
router: soroban_sdk::Address,
path: soroban_sdk::Vec,
min_profit: i128,
pool: soroban_sdk::Address,
)
fn on_flash_loan(
env: soroban_sdk::Env,
_initiator: soroban_sdk::Address,
asset: soroban_sdk::Address,
amount: i128,
fee: i128,
_data: soroban_sdk::Bytes,
) -> bool