fn receive_payment(
env: soroban_sdk::Env,
wallet: soroban_sdk::Address,
circle_mint_transaction_id: soroban_sdk::String,
uid: soroban_sdk::String,
collective_address: soroban_sdk::String,
installment_payment_id: soroban_sdk::String,
collective_id: soroban_sdk::String,
amount: i128,
collective_installment_id: soroban_sdk::String,
)fn get_payment(env: soroban_sdk::Env) -> Option<(soroban_sdk::Address, i128, u64)>fn send_payment(
env: soroban_sdk::Env,
to: soroban_sdk::Address,
amount: i128,
installment_payment_id: soroban_sdk::String,
)