# System.IO

``` diff
 namespace System.IO {
     public class BinaryReader : IDisposable {
-        protected internal int Read7BitEncodedInt();
+        public int Read7BitEncodedInt();
+        public long Read7BitEncodedInt64();
     }
     public class BinaryWriter : IAsyncDisposable, IDisposable {
-        protected void Write7BitEncodedInt(int value);
+        public void Write7BitEncodedInt(int value);
+        public void Write7BitEncodedInt64(long value);
     }
 }
```

