native_ property
Native is the chain's own currency, as a 0x-quantity — the RPC's own encoding, not a float, because a wei value does not survive float64.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? native_;