fn hello(
env: soroban_sdk::Env,
to: soroban_sdk::String,
) -> soroban_sdk::Vec
fn blend_test(
env: soroban_sdk::Env,
pool_addr: soroban_sdk::Address,
from: soroban_sdk::Address,
spender: soroban_sdk::Address,
to: soroban_sdk::Address,
requests: soroban_sdk::Vec,
token_addrs: soroban_sdk::Vec,
token_amounts: soroban_sdk::Vec,
dest_addr: soroban_sdk::Address,
) -> u32