Document.fromJson constructor
      
      Document.fromJson(
    
    
- Map json_
Implementation
Document.fromJson(core.Map json_)
  : this(
      content: json_['content'] as core.String?,
      gcsContentUri: json_['gcsContentUri'] as core.String?,
      language: json_['language'] as core.String?,
      type: json_['type'] as core.String?,
    );