anchor.diff:  library services.dartservices.v1;
   
   import 'dart:core' as core;
  -//import 'dart:collection' as collection;
  +import 'dart:collection' as collection;
   import 'dart:async' as async;
   import 'dart:convert' as convert;
   
   import 'package:_discoveryapis_commons/_discoveryapis_commons.dart' as commons;
  -//import 'package:crypto/crypto.dart' as crypto;
  +import 'package:crypto/crypto.dart' as crypto;
   import 'package:http/http.dart' as http;
   
   export 'package:_discoveryapis_commons/_discoveryapis_commons.dart' show
  
positive.code: 
    core.int line;
  
    /** deprecated - see sourcePath */
    core.String location;
  
    core.String message;
  
    core.String sourcePath;
  
  
    AnalysisIssue();
  
negative.code:     if (_json.containsKey("message")) {
        message = _json["message"];
      }
      if (_json.containsKey("sourceName")) {
        sourceName = _json["sourceName"];
      }
    }
  
  