[Snippet rust]
```rust
fn get_card_fields() -> HashMap<String, RequiredFieldInfo> {
    HashMap::from([
        (
            "payout_method_data.card.card_number".to_string(),
            RequiredFieldInfo {
```
Path: hyperswitch/crates/router/src/configs/defaults/payout_required_fields.rs :: get_card_fields (function, crate=router)

Negatives:
- hyperswitch/crates/hyperswitch_interfaces/src/connector_integration_interface.rs :: get_webhook_api_response
- hyperswitch/crates/hyperswitch_connectors/src/connectors/nordea/transformers.rs :: try_from
- hyperswitch/crates/hyperswitch_connectors/src/connectors/bamboraapac/transformers.rs :: try_from
- hyperswitch/crates/router/src/core/webhooks/outgoing.rs :: get_webhook_url_from_business_profile
- hyperswitch/crates/hyperswitch_connectors/src/connectors/elavon.rs :: get_request_body