Revert "Remove node_modules"

node_modules/before-after-hook/lib/add.js

@@ -0,0 +1,46 @@
+module.exports = addHook;
+
+function addHook(state, kind, name, hook) {
+  var orig = hook;
+  if (!state.registry[name]) {
+    state.registry[name] = [];
+  }
+
+  if (kind === "before") {
+    hook = function (method, options) {
+      return Promise.resolve()
+        .then(orig.bind(null, options))
+        .then(method.bind(null, options));
+    };
+  }
+
+  if (kind === "after") {
+    hook = function (method, options) {
+      var result;
+      return Promise.resolve()
+        .then(method.bind(null, options))
+        .then(function (result_) {
+          result = result_;
+          return orig(result, options);
+        })
+        .then(function () {
+          return result;
+        });
+    };
+  }
+
+  if (kind === "error") {
+    hook = function (method, options) {
+      return Promise.resolve()
+        .then(method.bind(null, options))
+        .catch(function (error) {
+          return orig(error, options);
+        });
+    };
+  }
+
+  state.registry[name].push({
+    hook: hook,
+    orig: orig,
+  });
+}