fn init(
env: soroban_sdk::Env,
admin: soroban_sdk::Address,
) -> Result<(), soroban_sdk::Error>fn send(
env: soroban_sdk::Env,
token_id: soroban_sdk::Address,
recipient: soroban_sdk::MuxedAddress,
amount: i128,
) -> Result<(), soroban_sdk::Error>fn admin(env: soroban_sdk::Env) -> Result