Add missed interface files

1 files changed, 7 insertions, 0 deletions

diff --git a/filter/interface.go b/filter/interface.go
new file mode 100644
index 0000000..83d2dfe
--- /dev/null
+++ b/filter/interface.go
@@ -0,0 +1,7 @@
+package filter
+
+import "github.com/Shugyousha/stasher/work"
+
+type Filter interface {
+	Filter(*work.Work) *work.Work
+}