1 files changed, 9 insertions, 2 deletions
diff --git a/src/content/reducers/setting.ts b/src/content/reducers/setting.ts
index a49db6d..fa8e8ee 100644
--- a/src/content/reducers/setting.ts
+++ b/src/content/reducers/setting.ts
@@ -1,11 +1,18 @@
-import actions from 'content/actions';
+import * as actions from '../actions';
+
+export interface State {
+  keymaps: any[];
+}
 
 const defaultState = {
   // keymaps is and arrays of key-binding pairs, which is entries of Map
   keymaps: [],
 };
 
-export default function reducer(state = defaultState, action = {}) {
+export default function reducer(
+  state: State = defaultState,
+  action: actions.SettingAction,
+): State {
   switch (action.type) {
   case actions.SETTING_SET:
     return { ...action.value };