RubySettings.fromJson constructor
      
      RubySettings.fromJson(
    
    
- Map json_
Implementation
RubySettings.fromJson(core.Map json_)
    : this(
        common: json_.containsKey('common')
            ? CommonLanguageSettings.fromJson(
                json_['common'] as core.Map<core.String, core.dynamic>)
            : null,
      );