code: function getHashEncodedPair(n) {
          getBytes(function(keyBuffer) {
            getBytes(function(valueBuffer, output) {
              object.value[keyBuffer.toString(encoding)] =
                raw ? valueBuffer : valueBuffer.toString(encoding);
              object.length++;
              next(n);
            });
          });
        }
docs: This could cause a very deep stack except that we rely on the underlying _bytes() calls to either unwind the stack if they need to asynchronously wait for more data, or else to trampoline to avoid stack overflow.