isFullDownload property
      
      bool
      get
      isFullDownload
      
    
    
true if this is a full download and false if this is a partial
download.
Implementation
bool get isFullDownload => range.start == 0 && range.end == -1;true if this is a full download and false if this is a partial
download.
bool get isFullDownload => range.start == 0 && range.end == -1;