Function trigger_order_to_derive_payload 

pub fn trigger_order_to_derive_payload(
    order: &OrderAny,
    instrument: &DeriveInstrument,
    subaccount_id: u64,
    wallet: Address,
    signer: &PrivateKeySigner,
    nonce: u64,
    signature_expiry_sec: i64,
    module_address: Address,
    domain_separator: B256,
    action_typehash: B256,
    max_fee: Decimal,
    explicit_price: Option<Decimal>,
    conn_id: impl Into<String>,
    order_id: impl Into<String>,
) -> Result<DeriveTriggerOrderParams>

Builds typed params for a signed private/trigger_order request.

Derive stores trigger orders off-book until the venue trigger worker submits the signed child order. conn_id and order_id are client-supplied fields required by the WebSocket-only endpoint.

Errors

Returns an error when the order is not one of StopMarket, StopLimit, MarketIfTouched, or LimitIfTouched, when the trigger source is not MarkPrice, when required prices are absent, or when EIP-712 signing fails.