IFileSystemOpen

IFileSystemOpenStream is interface for opening and creating files for reading and writing.

IFileSystemOpenStreamAsync is async interface for opening and creating files for reading and writing.

IFileSystem.OpenStream(path, fileMode, fileAccess, fileShare, option) opens a stream to a file path.

IFileSystem filesystem = new FileSystem(AppDomain.CurrentDomain.BaseDirectory);
using Stream s = filesystem.OpenStream("file.txt");
s.WriteByte(32);