fn upgrade(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
new_wasm_hash: soroban_sdk::BytesN<32>,
)
fn __constructor(
env: soroban_sdk::Env,
owner: soroban_sdk::Address,
xlm_sac: soroban_sdk::Address,
)
fn add_user_tokens(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
to: soroban_sdk::Address,
) -> i128
fn native_xlm_swap(
env: soroban_sdk::Env,
caller: soroban_sdk::Address,
from: soroban_sdk::Address,
_to: soroban_sdk::Address,
amount: i128,
)