pub fn mock_env(
get_account_result: Option<Result<AccountEntry, SorobanHelperError>>,
simulate_transaction_envelope_result: Option<Result<SimulateTransactionResponse, SorobanHelperError>>,
send_transaction_polling_result: Option<Result<SorobanTransactionResponse, SorobanHelperError>>,
) -> EnvExpand description
Creates a mock environment with configurable responses