anchor.diff:    /// [value] required value
     /// [iOptions] optional iOS options
     /// [aOptions] optional Android options
  -  /// [lOptioins] options Linux options
  +  /// [lOptions] options Linux options
     /// Can throw a [PlatformException].
     Future<void> write(
             {@required String key,
  
positive.code:   /// [key] shoudn't be null.
    /// [iOptions] optional iOS options
    /// [aOptions] optional Android options
    /// [lOptioins] options Linux options
    /// Can throw a [PlatformException].
    Future<String> read(
        {@required String key,
  
negative.code:   ///
    /// [iOptions] optional iOS options
    /// [aOptions] optional Android options
    /// [lOptions] options Linux options
    /// Can throw a [PlatformException].
    Future<void> deleteAll(
            {IOSOptions iOptions,
  