[Snippet rust]
```rust
pub struct References {
    pub merchant_reference: String,
}
```
Path: hyperswitch/crates/hyperswitch_connectors/src/connectors/worldline/transformers.rs :: References (struct, crate=hyperswitch_connectors)

Negatives:
- hyperswitch/crates/hyperswitch_connectors/src/connectors/bamboraapac/transformers.rs :: SubmitSingleRefundResponse
- hyperswitch/crates/router/src/types/domain/user.rs :: MerchantLevel
- hyperswitch/crates/hyperswitch_connectors/src/connectors/archipel/transformers.rs :: ArchipelRefundOrder
- hyperswitch/crates/hyperswitch_connectors/src/connectors/loonio/transformers.rs :: LoonioWebhookBody
- hyperswitch/crates/router/src/types/payment_methods.rs :: AddVaultRequest