anchor.diff: +import 'package:equatable/equatable.dart';
   import 'package:meta/meta.dart';
   
   import '../../../../core/error/failure.dart';
  
positive.code:       failureSuggestion: failureSuggestion ?? this.failureSuggestion,
      );
    }
  }
  
negative.code:   success,
  }
  
  class GraphState extends Equatable {
    final GraphData graphData;
    final GraphCurrentState graphCurrentState;
    final String yAxis;
  