1 files changed, 9 insertions, 0 deletions
diff --git a/common/iowrap/write_flusher.go b/common/iowrap/write_flusher.go
new file mode 100644
index 00000000..aaac8724
--- /dev/null
+++ b/common/iowrap/write_flusher.go
@@ -0,0 +1,9 @@
+package iowrap
+
+import "io"
+
+// WriteFlusher writes bytes and flushes buffered output state.
+type WriteFlusher interface {
+	io.Writer
+	Flush() error
+}