fn pull(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
from: soroban_sdk::Address,
_to: soroban_sdk::Address,
amount: i128,
)
fn flush(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
to: soroban_sdk::Address,
) -> i128
fn __constructor(env: soroban_sdk::Env, owner: soroban_sdk::Address)