fixup SendInvice::chat_id type
@@ -13,7 +13,7 @@ impl_payload! {
pub SendInvoice (SendInvoiceSetters) => Message {
required {
/// Unique identifier for the target private chat
- pub chat_id: u32,
+ pub chat_id: i32,
/// Product name, 1-32 characters
pub title: String [into],
/// Product description, 1-255 characters
