BuiltValueToStringHelper class Null safety
Interface for built_value toString() output helpers.
Note: this is an experimental feature. API may change without a major version increase.
String field, Object? value) → void
- Add a field and its value.
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
) → String
Returns to completed toString(). The helper may not be used after this
method is called.