diff --git a/babel-preset/configs/hmr.js b/babel-preset/configs/hmr.js
index e2b4a0f3d..05b305c09 100644
--- a/babel-preset/configs/hmr.js
+++ b/babel-preset/configs/hmr.js
@@ -3,6 +3,8 @@
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
+ *
+ * @format
  */
 'use strict';
 
@@ -13,8 +15,8 @@ var transformPath = require.resolve(hmrTransform);
 
 module.exports = function(options, filename) {
   var transform = filename
-      ? './' + path.relative(path.dirname(filename), transformPath) // packager can't handle absolute paths
-      : hmrTransform;
+    ? './' + path.relative(path.dirname(filename), transformPath) // packager can't handle absolute paths
+    : hmrTransform;
 
   // Fix the module path to use '/' on Windows.
   if (path.sep === '\\') {
@@ -26,13 +28,15 @@ module.exports = function(options, filename) {
       [
         require('metro-babel7-plugin-react-transform'),
         {
-          transforms: [{
-            transform: transform,
-            imports: ['react'],
-            locals: ['module'],
-          }]
+          transforms: [
+            {
+              transform: transform,
+              imports: ['react'],
+              locals: ['module'],
+            },
+          ],
         },
-      ]
-    ]
+      ],
+    ],
   };
 };
diff --git a/babel-preset/configs/main.js b/babel-preset/configs/main.js
index e6aeeec39..526d6f7f9 100644
--- a/babel-preset/configs/main.js
+++ b/babel-preset/configs/main.js
@@ -3,6 +3,8 @@
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
+ *
+ * @format
  */
 
 'use strict';
@@ -31,7 +33,7 @@ const defaultPlugins = [
     require('@babel/plugin-transform-modules-commonjs'),
     {
       strict: false,
-      strictMode : false, // prevent "use strict" injections
+      strictMode: false, // prevent "use strict" injections
       allowTopLevelThis: true, // dont rewrite global `this` -> `undefined`
     },
   ],
diff --git a/flow-github/metro.js b/flow-github/metro.js
index ff06b4277..db5dbdc28 100644
--- a/flow-github/metro.js
+++ b/flow-github/metro.js
@@ -5,6 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  *
  * @flow
+ * @format
  */
 
 declare module 'metro' {
diff --git a/flow/Map.js b/flow/Map.js
index f2021affd..0723ea426 100644
--- a/flow/Map.js
+++ b/flow/Map.js
@@ -5,23 +5,29 @@
  * LICENSE file in the root directory of this source tree.
  *
  * @flow
+ * @format
  */
 
 // These annotations are copy/pasted from the built-in Flow definitions for
 // Native Map.
 
-declare module "Map" {
+declare module 'Map' {
   // Use the name "MapPolyfill" so that we don't get confusing error
   // messages about "Using Map instead of Map".
   declare class MapPolyfill<K, V> {
     @@iterator(): Iterator<[K, V]>;
     constructor<Key, Value>(_: void): MapPolyfill<Key, Value>;
     constructor<Key, Value>(_: null): MapPolyfill<Key, Value>;
-    constructor<Key, Value>(iterable: Iterable<[Key, Value]>): MapPolyfill<Key, Value>;
+    constructor<Key, Value>(
+      iterable: Iterable<[Key, Value]>,
+    ): MapPolyfill<Key, Value>;
     clear(): void;
     delete(key: K): boolean;
     entries(): Iterator<[K, V]>;
-    forEach(callbackfn: (value: V, index: K, map: MapPolyfill<K, V>) => mixed, thisArg?: any): void;
+    forEach(
+      callbackfn: (value: V, index: K, map: MapPolyfill<K, V>) => mixed,
+      thisArg?: any,
+    ): void;
     get(key: K): V | void;
     has(key: K): boolean;
     keys(): Iterator<K>;
diff --git a/flow/Position.js b/flow/Position.js
index 58e3330b0..5bd2717c0 100644
--- a/flow/Position.js
+++ b/flow/Position.js
@@ -6,10 +6,11 @@
  *
  * @flow
  * @nolint
+ * @format
  */
 
 declare class Position {
-  coords: Coordinates,
-  timestamp: number,
-  mocked: boolean,
+  coords: Coordinates;
+  timestamp: number;
+  mocked: boolean;
 }
diff --git a/flow/Promise.js b/flow/Promise.js
index d69944eb4..64350cabc 100644
--- a/flow/Promise.js
+++ b/flow/Promise.js
@@ -5,41 +5,42 @@
  * LICENSE file in the root directory of this source tree.
  *
  * @flow
+ * @format
  */
 
 // These annotations are copy/pasted from the built-in Flow definitions for
 // Native Promises with some non-standard APIs added in
 declare class Promise<+R> {
-  constructor(callback: (
-    resolve: (result?: Promise<R> | R) => void,
-    reject: (error?: any) => void
-  ) => mixed): void;
+  constructor(
+    callback: (
+      resolve: (result?: Promise<R> | R) => void,
+      reject: (error?: any) => void,
+    ) => mixed,
+  ): void;
 
   then<U>(
     onFulfill?: ?(value: R) => Promise<U> | ?U,
-    onReject?: ?(error: any) => Promise<U> | ?U
+    onReject?: ?(error: any) => Promise<U> | ?U,
   ): Promise<U>;
 
-  catch<U>(
-    onReject?: (error: any) => ?Promise<U> | U
-  ): Promise<U>;
+  catch<U>(onReject?: (error: any) => ?Promise<U> | U): Promise<U>;
 
   static resolve<T>(object?: Promise<T> | T): Promise<T>;
   static reject<T>(error?: any): Promise<T>;
 
-  static all<T: Iterable<mixed>>(promises: T): Promise<$TupleMap<T, typeof $await>>;
+  static all<T: Iterable<mixed>>(
+    promises: T,
+  ): Promise<$TupleMap<T, typeof $await>>;
   static race<T>(promises: Array<Promise<T>>): Promise<T>;
 
   // Non-standard APIs
 
   // See https://github.com/facebook/fbjs/blob/master/packages/fbjs/src/__forks__/Promise.native.js#L21
-  finally<U>(
-    onFinally?: ?(value: any) => Promise<U> | U
-  ): Promise<U>;
+  finally<U>(onFinally?: ?(value: any) => Promise<U> | U): Promise<U>;
 
   done<U>(
     onFulfill?: ?(value: R) => mixed,
-    onReject?: ?(error: any) => mixed
+    onReject?: ?(error: any) => mixed,
   ): void;
 
   static cast<T>(object?: T): Promise<T>;
diff --git a/flow/Set.js b/flow/Set.js
index 54b997a68..ea3b1533b 100644
--- a/flow/Set.js
+++ b/flow/Set.js
@@ -6,12 +6,13 @@
  *
  * @flow
  * @nolint
+ * @format
  */
 
 // These annotations are copy/pasted from the built-in Flow definitions for
 // Native Set.
 
-declare module "Set" {
+declare module 'Set' {
   // Use the name "SetPolyfill" so that we don't get confusing error
   // messages about "Using Set instead of Set".
   declare class SetPolyfill<T> {
@@ -21,7 +22,10 @@ declare module "Set" {
     clear(): void;
     delete(value: T): boolean;
     entries(): Iterator<[T, T]>;
-    forEach(callbackfn: (value: T, index: T, set: SetPolyfill<T>) => mixed, thisArg?: any): void;
+    forEach(
+      callbackfn: (value: T, index: T, set: SetPolyfill<T>) => mixed,
+      thisArg?: any,
+    ): void;
     has(value: T): boolean;
     keys(): Iterator<T>;
     size: number;
diff --git a/flow/console.js b/flow/console.js
index 4e57ba953..a5d0d31bf 100644
--- a/flow/console.js
+++ b/flow/console.js
@@ -5,6 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  *
  * @flow
+ * @format
  */
 
 declare module 'console' {
@@ -22,17 +23,17 @@ declare module 'console' {
   declare function warn(...data: any): void;
   declare class Console {
     constructor(stdout: stream$Writable, stdin?: stream$Writable): void;
-    assert(value: any, ...message: any): void,
+    assert(value: any, ...message: any): void;
     dir(
       obj: Object,
       options: {showHidden: boolean, depth: number, colors: boolean},
-    ): void,
-    error(...data: any): void,
-    info(...data: any): void,
-    log(...data: any): void,
-    time(label: any): void,
-    timeEnd(label: any): void,
-    trace(first: any, ...rest: any): void,
-    warn(...data: any): void,
+    ): void;
+    error(...data: any): void;
+    info(...data: any): void;
+    log(...data: any): void;
+    time(label: any): void;
+    timeEnd(label: any): void;
+    trace(first: any, ...rest: any): void;
+    warn(...data: any): void;
   }
 }
diff --git a/flow/fbjs.js b/flow/fbjs.js
index f7b41b5a6..9106e436d 100644
--- a/flow/fbjs.js
+++ b/flow/fbjs.js
@@ -3,10 +3,16 @@
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
+ *
+ * @format
  */
 
 declare module 'fbjs/lib/invariant' {
-  declare module.exports: <T>(condition: any, message: string, ...args: Array<any>) => void;
+  declare module.exports: <T>(
+    condition: any,
+    message: string,
+    ...args: Array<any>
+  ) => void;
 }
 
 declare module 'fbjs/lib/nullthrows' {
diff --git a/flow/prop-types.js b/flow/prop-types.js
index c79dab62b..be239f5bd 100644
--- a/flow/prop-types.js
+++ b/flow/prop-types.js
@@ -6,6 +6,7 @@
  *
  * @flow
  * @nolint
+ * @format
  */
 
 // TODO (bvaughn) Remove this file once flowtype/flow-typed/pull/773 is merged
@@ -14,7 +15,7 @@ type $npm$propTypes$ReactPropsCheckType = (
   props: any,
   propName: string,
   componentName: string,
-  href?: string
+  href?: string,
 ) => ?Error;
 
 declare module 'prop-types' {
@@ -39,6 +40,6 @@ declare module 'prop-types' {
     values: V,
     location: string,
     componentName: string,
-    getStack: ?(() => ?string)
-  ) : void;
+    getStack: ?() => ?string,
+  ): void;
 }