diff --git a/package.json b/package.json
index 2e5360244..00587c3da 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
     "test": "ember test && ember test --env production",
     "test:node": "bin/run-node-tests.js",
     "test:ember": "yarn workspace @glimmer/component ember try:one",
-    "test:types": "dtslint test/types",
+    "test:types": "tsc --noEmit --project test/types && dtslint test/types",
+    "test:watch": "testem",
     "tslint": "tslint --project tsconfig.json",
     "problems": "tsc -p tsconfig.json --noEmit"
   },
@@ -39,6 +40,7 @@
     "ember-cli": "^3.7.1",
     "ember-cli-sauce": "^1.3.0",
     "eslint": "^4.3.0",
+    "expect-type": "^0.13.0",
     "glob": "^7.0.5",
     "lerna-changelog": "^0.7.0",
     "loader.js": "^4.0.10",
@@ -77,4 +79,4 @@
       "deprecation": ":warning: Deprecation"
     }
   }
-}
\ No newline at end of file
+}
diff --git a/packages/@glimmer/component/addon/-private/component.ts b/packages/@glimmer/component/addon/-private/component.ts
index c63b72f3d..105d39ae3 100644
--- a/packages/@glimmer/component/addon/-private/component.ts
+++ b/packages/@glimmer/component/addon/-private/component.ts
@@ -2,12 +2,87 @@ import { DEBUG } from '@glimmer/env';
 import { setOwner } from './owner';
 import { isDestroying, isDestroyed } from './destroyables';
 
-export let ARGS_SET: WeakMap<any, boolean>;
+// This provides a type-safe `WeakMap`: the getter and setter link the key to a
+// specific value. This is how `WeakMap`s actually behave, but the TS type
+// system does not (yet!) have a good way to capture that for types like
+// `WeakMap` where the type is generic over another generic type (here, `Args`).
+interface ArgsSetMap extends WeakMap<Args<unknown>, boolean> {
+  get<S>(key: Args<S>): boolean | undefined;
+  set<S>(key: Args<S>, value: boolean): this;
+}
+
+// SAFETY: this only holds because we *only* acces this when `DEBUG` is `true`.
+// There is not a great way to connect that data in TS at present.
+export let ARGS_SET: ArgsSetMap;
 
 if (DEBUG) {
-  ARGS_SET = new WeakMap();
+  ARGS_SET = new WeakMap() as ArgsSetMap;
 }
 
+// --- Type utilities for component signatures --- //
+// Type-only "symbol" to use with `EmptyObject` below, so that it is *not*
+// equivalent to an empty interface.
+declare const Empty: unique symbol;
+
+/**
+ * This provides us a way to have a "fallback" which represents an empty object,
+ * without the downsides of how TS treats `{}`. Specifically: this will
+ * correctly leverage "excess property checking" so that, given a component
+ * which has no named args, if someone invokes it with any named args, they will
+ * get a type error.
+ *
+ * @internal This is exported so declaration emit works (if it were not emitted,
+ *   declarations which fall back to it would not work). It is *not* intended for
+ *   public usage, and the specific mechanics it uses may change at any time.
+ *   The location of this export *is* part of the public API, because moving it
+ *   will break existing declarations, but is not legal for end users to import
+ *   themselves, so ***DO NOT RELY ON IT***.
+ */
+export type EmptyObject = { [Empty]?: true };
+
+type GetOrElse<Obj, K, Fallback> = K extends keyof Obj ? Obj[K] : Fallback;
+
+/** Given a signature `S`, get back the `Args` type. */
+type ArgsFor<S> = 'Args' extends keyof S
+  ? S['Args'] extends { Named?: object; Positional?: unknown[] } // Are they longhand already?
+    ? {
+        Named: GetOrElse<S['Args'], 'Named', EmptyObject>;
+        Positional: GetOrElse<S['Args'], 'Positional', []>;
+      }
+    : { Named: S['Args']; Positional: [] }
+  : { Named: EmptyObject; Positional: [] };
+
+/**
+ * Given any allowed shorthand form of a signature, desugars it to its full
+ * expanded type.
+ *
+ * @internal This is only exported so we can avoid duplicating it in
+ *   [Glint](https://github.com/typed-ember/glint) or other such tooling. It is
+ *   *not* intended for public usage, and the specific mechanics it uses may
+ *   change at any time. Although the signature produced by is part of Glimmer's
+ *   public API the existence and mechanics of this specific symbol are *not*,
+ *   so ***DO NOT RELY ON IT***.
+ */
+export type ExpandSignature<T> = {
+  Element: GetOrElse<T, 'Element', null>;
+  Args: keyof T extends 'Args' | 'Element' | 'Blocks' // Is this a `Signature`?
+    ? ArgsFor<T> // Then use `Signature` args
+    : { Named: T; Positional: [] }; // Otherwise fall back to classic `Args`.
+  Blocks: 'Blocks' extends keyof T
+    ? {
+        [Block in keyof T['Blocks']]: T['Blocks'][Block] extends unknown[]
+          ? { Positional: T['Blocks'][Block] }
+          : T['Blocks'][Block];
+      }
+    : EmptyObject;
+};
+
+/**
+ * @internal we use this type for convenience internally; inference means users
+ *   should not normally need to name it
+ */
+export type Args<S> = ExpandSignature<S>['Args']['Named'];
+
 /**
  * The `Component` class defines an encapsulated UI element that is rendered to
  * the DOM. A component is made up of a template and, optionally, this component
@@ -131,7 +206,7 @@ if (DEBUG) {
  * `args` property. For example, if `{{@firstName}}` is `Tom` in the template,
  * inside the component `this.args.firstName` would also be `Tom`.
  */
-export default class BaseComponent<T = object> {
+export default class BaseComponent<S = unknown> {
   /**
    * Constructs a new component and assigns itself the passed properties. You
    * should not construct new components yourself. Instead, Glimmer will
@@ -140,12 +215,10 @@ export default class BaseComponent<T = object> {
    * @param owner
    * @param args
    */
-  constructor(owner: unknown, args: T) {
+  constructor(owner: unknown, args: Args<S>) {
     if (DEBUG && !(owner !== null && typeof owner === 'object' && ARGS_SET.has(args))) {
       throw new Error(
-        `You must pass both the owner and args to super() in your component: ${
-          this.constructor.name
-        }. You can pass them directly, or use ...arguments to pass all arguments through.`
+        `You must pass both the owner and args to super() in your component: ${this.constructor.name}. You can pass them directly, or use ...arguments to pass all arguments through.`
       );
     }
 
@@ -177,18 +250,18 @@ export default class BaseComponent<T = object> {
    * <p>Welcome, {{@firstName}} {{@lastName}}!</p>
    * ```
    */
-  args: Readonly<T>;
+  args: Readonly<Args<S>>;
 
-  get isDestroying() {
+  get isDestroying(): boolean {
     return isDestroying(this);
   }
 
-  get isDestroyed() {
+  get isDestroyed(): boolean {
     return isDestroyed(this);
   }
 
   /**
    * Called before the component has been removed from the DOM.
    */
-  willDestroy() {}
+  willDestroy(): void {}
 }
diff --git a/packages/@glimmer/component/addon/index.ts b/packages/@glimmer/component/addon/index.ts
index d2418665d..881bf0c2e 100644
--- a/packages/@glimmer/component/addon/index.ts
+++ b/packages/@glimmer/component/addon/index.ts
@@ -1,10 +1,25 @@
 import { DEBUG } from '@glimmer/env';
-import ApplicationInstance from '@ember/application/instance';
+import type ApplicationInstance from '@ember/application/instance';
 import { setComponentManager } from '@ember/component';
 import { gte } from 'ember-compatibility-helpers';
 
+// Hax because the old version of `@types/ember__component` the `1.x` branch
+// uses does not provide any types for `setComponentManager` *and* because we
+// are using a very old version of `setComponentManager` for versions before
+// Ember 3.8.
+declare module '@ember/component' {
+  // The modern version.
+  export function setComponentManager<T extends object>(
+    factory: (owner: ApplicationInstance) => GlimmerComponentManager,
+    componentClass: T
+  ): T;
+
+  // The pre-3.8 version.
+  export function setComponentManager<T extends object>(name: string, componentClass: T): T;
+}
+
 import GlimmerComponentManager from './-private/ember-component-manager';
-import GlimmerComponentBase from './-private/component';
+import GlimmerComponentBase, { Args } from './-private/component';
 
 let GlimmerComponent = GlimmerComponentBase;
 
@@ -13,15 +28,19 @@ if (DEBUG) {
 
   // TODO: Add GlimmerComponent API docs link to these messages once API docs are live
   function throwMethodUseError(methodName: string) {
-    throw new Error(`You attempted to define the '${methodName}' method on a Glimmer Component, but that lifecycle hook does not exist in Ember.js applications, it only exists in Glimmer.js apps. You can rename this method, and you can trigger it using a modifier such as {{did-insert}} from '@ember/render-modifiers': https://github.com/emberjs/ember-render-modifiers.`);
+    throw new Error(
+      `You attempted to define the '${methodName}' method on a Glimmer Component, but that lifecycle hook does not exist in Ember.js applications, it only exists in Glimmer.js apps. You can rename this method, and you can trigger it using a modifier such as {{did-insert}} from '@ember/render-modifiers': https://github.com/emberjs/ember-render-modifiers.`
+    );
   }
 
   function throwPropertyUseError(propertyName: string) {
-    throw new Error(`You attempted to access the '${propertyName}' property on a Glimmer Component, but that property does not exist in Ember.js applications, it only exists in Glimmer.js apps. You define a class field with the same name on your component class and it will overwrite this error message, but it will not be used by the framework.`);
+    throw new Error(
+      `You attempted to access the '${propertyName}' property on a Glimmer Component, but that property does not exist in Ember.js applications, it only exists in Glimmer.js apps. You define a class field with the same name on your component class and it will overwrite this error message, but it will not be used by the framework.`
+    );
   }
 
-  GlimmerComponent = class GlimmerDebugComponent<T> extends GlimmerComponent<T> {
-    constructor(owner: unknown, args: T) {
+  GlimmerComponent = class GlimmerDebugComponent<S> extends GlimmerComponent<S> {
+    constructor(owner: unknown, args: Args<S>) {
       super(owner, args);
 
       if (typeof this['didInsertElement'] === 'function') {
@@ -34,9 +53,13 @@ if (DEBUG) {
     }
   };
 
-  let proto = GlimmerComponent.prototype as any;
+  let proto = GlimmerComponent.prototype;
 
-  function defineErrorProp(proto, key, getterMethod) {
+  function defineErrorProp(
+    proto: GlimmerComponentBase,
+    key: string,
+    getterMethod: (key: string) => unknown
+  ) {
     Object.defineProperty(proto, key, {
       get: () => getterMethod(key),
       set(value) {
diff --git a/packages/@glimmer/component/package.json b/packages/@glimmer/component/package.json
index 789404ca3..c8e3c199e 100644
--- a/packages/@glimmer/component/package.json
+++ b/packages/@glimmer/component/package.json
@@ -40,7 +40,7 @@
     "ember-cli-string-utils": "^1.1.0",
     "ember-cli-typescript": "3.0.0",
     "ember-cli-version-checker": "^3.1.3",
-    "ember-compatibility-helpers": "^1.1.2"
+    "ember-compatibility-helpers": "^1.2.6"
   },
   "devDependencies": {
     "@ember/optional-features": "^0.6.1",
@@ -93,4 +93,4 @@
     "defaultBlueprint": "install-glimmer-component",
     "main": "ember-addon-main.js"
   }
-}
\ No newline at end of file
+}
diff --git a/packages/@glimmer/component/src/component.ts b/packages/@glimmer/component/src/component.ts
index 068026db7..592e1f271 100644
--- a/packages/@glimmer/component/src/component.ts
+++ b/packages/@glimmer/component/src/component.ts
@@ -1,6 +1,6 @@
 import { assert } from '@glimmer/util';
 import { setComponentManager } from '@glimmer/application';
-import BaseComponent from '../addon/-private/component';
+import BaseComponent, { Args } from '../addon/-private/component';
 import GlimmerComponentManager from './component-manager';
 
 export interface Bounds {
@@ -8,8 +8,8 @@ export interface Bounds {
   lastNode: Node;
 }
 
-export default class Component<Args extends {} = {}> extends BaseComponent<Args> {
-  args: Args;
+export default class Component<S> extends BaseComponent<S> {
+  args: Readonly<Args<S>>;
 
   /**
    * Development-mode only name of the component, useful for debugging.
diff --git a/test/types/component-test.ts b/test/types/component-test.ts
index c99763561..8c7435f2a 100644
--- a/test/types/component-test.ts
+++ b/test/types/component-test.ts
@@ -1,62 +1,96 @@
+import { expectTypeOf } from 'expect-type';
 import * as gc from '@glimmer/component';
-import { hasExactKeys } from './utils';
 
 const Component = gc.default;
 
-hasExactKeys<{
-  default: unknown,
-}>()(gc);
-
-// $ExpectType typeof Component
-gc.default;
+expectTypeOf(gc).toHaveProperty('default');
+expectTypeOf(gc.default).toEqualTypeOf<typeof Component>();
 
 type Args = {
   foo: number;
 };
 
-let component = new Component<Args>({}, { foo: 123 });
-
-hasExactKeys<{
-  args: unknown,
-  bounds: {
-    firstNode: unknown,
-    lastNode: unknown,
-  },
-  debugName: unknown,
-  didInsertElement: unknown,
-  didUpdate: unknown,
-  element: unknown,
-  isDestroying: unknown,
-  isDestroyed: unknown,
-  willDestroy: unknown,
-}>()(component);
-
-// $ExpectType Args
-component.args;
-
-// $ExpectType Bounds
-component.bounds;
-
-// $ExpectType string
-component.debugName;
-
-// $ExpectType () => void
-component.didInsertElement;
-
-// $ExpectType () => void
-component.didUpdate;
-
-// $ExpectType HTMLElement
-component.element;
-
-// $ExpectType boolean
-component.isDestroying;
-
-// $ExpectType boolean
-component.isDestroyed;
-
-// $ExpectType () => void
-component.willDestroy;
-
-// $ExpectError
-component.args.bar = 123;
+const componentWithLegacyArgs = new Component<Args>({}, { foo: 123 });
+expectTypeOf(componentWithLegacyArgs).toHaveProperty('args');
+expectTypeOf(componentWithLegacyArgs).toHaveProperty('isDestroying');
+expectTypeOf(componentWithLegacyArgs).toHaveProperty('isDestroyed');
+expectTypeOf(componentWithLegacyArgs).toHaveProperty('willDestroy');
+expectTypeOf(componentWithLegacyArgs.args).toEqualTypeOf<Readonly<Args>>();
+expectTypeOf(componentWithLegacyArgs.isDestroying).toEqualTypeOf<boolean>();
+expectTypeOf(componentWithLegacyArgs.isDestroyed).toEqualTypeOf<boolean>();
+expectTypeOf(componentWithLegacyArgs.willDestroy).toEqualTypeOf<() => void>();
+
+interface ArgsOnly {
+  Args: Args;
+}
+
+const componentWithArgsOnly = new Component<ArgsOnly>({}, { foo: 123 });
+expectTypeOf(componentWithArgsOnly.args).toEqualTypeOf<Readonly<Args>>();
+
+interface ElementOnly {
+  Element: HTMLParagraphElement;
+}
+
+const componentWithElOnly = new Component<ElementOnly>({}, {});
+
+// We cannot check on toEqualTypeOf here b/c EmptyObject is intentionally not
+// public.
+expectTypeOf(componentWithElOnly.args).toMatchTypeOf<Readonly<{}>>();
+
+interface Blocks {
+  default: [name: string];
+  inverse: [];
+}
+
+interface BlockOnlySig {
+  Blocks: Blocks;
+}
+
+const componentWithBlockOnly = new Component<BlockOnlySig>({}, {});
+
+// We cannot check on toEqualTypeOf here b/c EmptyObject is intentionally not
+// public.
+expectTypeOf(componentWithBlockOnly.args).toMatchTypeOf<Readonly<{}>>();
+
+interface ArgsAndBlocks {
+  Args: Args;
+  Blocks: Blocks;
+}
+
+const componentwithArgsAndBlocks = new Component<ArgsAndBlocks>({}, { foo: 123 });
+expectTypeOf(componentwithArgsAndBlocks.args).toEqualTypeOf<Readonly<Args>>();
+
+interface ArgsAndEl {
+  Args: Args;
+  Element: HTMLParagraphElement;
+}
+
+const componentwithArgsAndEl = new Component<ArgsAndEl>({}, { foo: 123 });
+expectTypeOf(componentwithArgsAndEl.args).toEqualTypeOf<Readonly<Args>>();
+
+interface FullShortSig {
+  Args: Args;
+  Element: HTMLParagraphElement;
+  Blocks: Blocks;
+}
+
+const componentWithFullShortSig = new Component<FullShortSig>({}, { foo: 123 });
+expectTypeOf(componentWithFullShortSig.args).toEqualTypeOf<Readonly<Args>>();
+
+interface FullLongSig {
+  Args: {
+    Named: Args;
+    Positional: [];
+  };
+  Element: HTMLParagraphElement;
+  Blocks: {
+    default: {
+      Params: {
+        Positional: [name: string];
+      };
+    };
+  };
+}
+
+const componentWithFullSig = new Component<FullLongSig>({}, { foo: 123 });
+expectTypeOf(componentWithFullSig.args).toEqualTypeOf<Readonly<Args>>();
diff --git a/yarn.lock b/yarn.lock
index a6aeaafb0..66d9bdaa8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1689,6 +1689,14 @@ accepts@~1.3.4, accepts@~1.3.5:
     mime-types "~2.1.18"
     negotiator "0.6.1"
 
+accepts@~1.3.7:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.8.tgz#0bf0be125b67014adcb0b0921e62db7bffe16b2e"
+  integrity sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==
+  dependencies:
+    mime-types "~2.1.34"
+    negotiator "0.6.3"
+
 acorn-jsx@^3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
@@ -2080,6 +2088,11 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
   integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
 
+at-least-node@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/at-least-node/-/at-least-node-1.0.0.tgz#602cd4b46e844ad4effc92a8011a3c46e0238dc2"
+  integrity sha512-+q/t7Ekv1EDY2l6Gda6LLiX14rU9TV20Wa3ofeQmwPFZbOMo9DXrLbOjFaaclkXKWidIaopwAObQDqwWtGUjqg==
+
 atob@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
@@ -2854,6 +2867,22 @@ body-parser@1.18.3:
     raw-body "2.3.3"
     type-is "~1.6.16"
 
+body-parser@1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.1.tgz#1499abbaa9274af3ecc9f6f10396c995943e31d4"
+  integrity sha512-8ljfQi5eBk8EJfECMrgqNGWPEY5jWP+1IzkzkGdFFEwFQZZyaZ21UqdaHktgiMlH0xLHqIFtE/u2OYE5dOtViA==
+  dependencies:
+    bytes "3.1.1"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
+    on-finished "~2.3.0"
+    qs "6.9.6"
+    raw-body "2.4.2"
+    type-is "~1.6.18"
+
 body@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/body/-/body-5.1.0.tgz#e4ba0ce410a46936323367609ecb4e6553125069"
@@ -3763,6 +3792,11 @@ bytes@3.0.0:
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
   integrity sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=
 
+bytes@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.1.tgz#3f018291cb4cbad9accb6e6970bca9c8889e879a"
+  integrity sha512-dWe4nWO/ruEOY7HkUJ5gFt1DCFV9zPRoJr8pV0/ASQermOZjtq8jMjOprC0Kd10GLN+l7xaUPvxzJFWtxGu8Fg==
+
 cacache@^10.0.0:
   version "10.0.4"
   resolved "https://registry.yarnpkg.com/cacache/-/cacache-10.0.4.tgz#6452367999eff9d4188aefd9a14e9d7c6a263460"
@@ -4381,6 +4415,13 @@ content-disposition@0.5.2:
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
   integrity sha1-DPaLud318r55YcOoUXjLhdunjLQ=
 
+content-disposition@0.5.4:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.4.tgz#8b82b4efac82512a02bb0b1dcec9d2c5e8eb5bfe"
+  integrity sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==
+  dependencies:
+    safe-buffer "5.2.1"
+
 content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
@@ -4408,6 +4449,11 @@ cookie@0.3.1:
   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
   integrity sha1-5+Ch+e9DtMi6klxcWpboBtFoc7s=
 
+cookie@0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.1.tgz#afd713fe26ebd21ba95ceb61f9a8116e50a537d1"
+  integrity sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==
+
 copy-concurrently@^1.0.0:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/copy-concurrently/-/copy-concurrently-1.0.5.tgz#92297398cae34937fcafd6ec8139c18051f0b5e0"
@@ -5265,6 +5311,15 @@ ember-cli-version-checker@^3.1.3:
     resolve-package-path "^1.2.6"
     semver "^5.6.0"
 
+ember-cli-version-checker@^5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/ember-cli-version-checker/-/ember-cli-version-checker-5.1.2.tgz#649c7b6404902e3b3d69c396e054cea964911ab0"
+  integrity sha512-rk7GY+FmLn/2e22HsZs0Ycrz8HQ1W3Fv+2TFOuEFW9optnDXDgkntPBIl6gact/LHsfBM5RKbM3dHsIIeLgl0Q==
+  dependencies:
+    resolve-package-path "^3.1.0"
+    semver "^7.3.4"
+    silent-error "^1.1.1"
+
 ember-cli@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/ember-cli/-/ember-cli-3.7.1.tgz#f307bcd68aaf083612717ab32133120272d89170"
@@ -5454,15 +5509,6 @@ ember-cli@~3.4.0-beta.1:
     watch-detector "^0.1.0"
     yam "^0.0.24"
 
-ember-compatibility-helpers@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/ember-compatibility-helpers/-/ember-compatibility-helpers-1.1.2.tgz#ae0ee4a7a2858b5ffdf79b428c23aee85c47d93d"
-  integrity sha512-yN163MzERpotO8M0b+q+kXs4i3Nx6aIriiZHWv+yXQzr2TAtYlVwg9V7/3+jcurOa3oDEYDpN7y9UZ6q3mnoTg==
-  dependencies:
-    babel-plugin-debug-macros "^0.2.0"
-    ember-cli-version-checker "^2.1.1"
-    semver "^5.4.1"
-
 ember-compatibility-helpers@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/ember-compatibility-helpers/-/ember-compatibility-helpers-1.2.0.tgz#feee16c5e9ef1b1f1e53903b241740ad4b01097e"
@@ -5472,6 +5518,17 @@ ember-compatibility-helpers@^1.2.0:
     ember-cli-version-checker "^2.1.1"
     semver "^5.4.1"
 
+ember-compatibility-helpers@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/ember-compatibility-helpers/-/ember-compatibility-helpers-1.2.6.tgz#603579ab2fb14be567ef944da3fc2d355f779cd8"
+  integrity sha512-2UBUa5SAuPg8/kRVaiOfTwlXdeVweal1zdNPibwItrhR0IvPrXpaqwJDlEZnWKEoB+h33V0JIfiWleSG6hGkkA==
+  dependencies:
+    babel-plugin-debug-macros "^0.2.0"
+    ember-cli-version-checker "^5.1.1"
+    find-up "^5.0.0"
+    fs-extra "^9.1.0"
+    semver "^5.4.1"
+
 ember-decorators-polyfill@^1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/ember-decorators-polyfill/-/ember-decorators-polyfill-1.0.6.tgz#93094a1eebfd8d54e85abd941f78bc330dc3f973"
@@ -6195,7 +6252,48 @@ expand-tilde@^2.0.0, expand-tilde@^2.0.2:
   dependencies:
     homedir-polyfill "^1.0.1"
 
-express@^4.10.7, express@^4.16.3:
+expect-type@^0.13.0:
+  version "0.13.0"
+  resolved "https://registry.yarnpkg.com/expect-type/-/expect-type-0.13.0.tgz#916646a7a73f3ee77039a634ee9035efe1876eb2"
+  integrity sha512-CclevazQfrqo8EvbLPmP7osnb1SZXkw47XPPvUUpeMz4HuGzDltE7CaIt3RLyT9UQrwVK/LDn+KVcC0hcgjgDg==
+
+express@^4.10.7:
+  version "4.17.2"
+  resolved "https://registry.npmjs.org/express/-/express-4.17.2.tgz#c18369f265297319beed4e5558753cc8c1364cb3"
+  integrity sha512-oxlxJxcQlYwqPWKVJJtvQiwHgosH/LrLSPA+H4UxpyvSS6jC5aH+5MoHFM+KABgTOt0APue4w66Ha8jCUo9QGg==
+  dependencies:
+    accepts "~1.3.7"
+    array-flatten "1.1.1"
+    body-parser "1.19.1"
+    content-disposition "0.5.4"
+    content-type "~1.0.4"
+    cookie "0.4.1"
+    cookie-signature "1.0.6"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "~1.1.2"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.7"
+    qs "6.9.6"
+    range-parser "~1.2.1"
+    safe-buffer "5.2.1"
+    send "0.17.2"
+    serve-static "1.14.2"
+    setprototypeof "1.2.0"
+    statuses "~1.5.0"
+    type-is "~1.6.18"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
+express@^4.16.3:
   version "4.16.4"
   resolved "https://registry.yarnpkg.com/express/-/express-4.16.4.tgz#fddef61926109e24c515ea97fd2f1bdbf62df12e"
   integrity sha512-j12Uuyb4FMrd/qQAm6uCHAkPtO8FDTRJZBDd5D2KOL2eLaz1yUNdUB/NOIyq0iU4q4cFarsUCrnFDPBcnksuOg==
@@ -6437,6 +6535,19 @@ finalhandler@1.1.1:
     statuses "~1.4.0"
     unpipe "~1.0.0"
 
+finalhandler@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
+  integrity sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    statuses "~1.5.0"
+    unpipe "~1.0.0"
+
 find-babel-config@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/find-babel-config/-/find-babel-config-1.1.0.tgz#acc01043a6749fec34429be6b64f542ebb5d6355"
@@ -6472,6 +6583,14 @@ find-up@^3.0.0:
   dependencies:
     locate-path "^3.0.0"
 
+find-up@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-5.0.0.tgz#4c92819ecb7083561e4f4a240a86be5198f536fc"
+  integrity sha512-78/PXT1wlLLDgTzDs7sjq9hzz0vXD+zn+7wypEe4fXQxCmdmqfGsEPQxmiCSQI3ajFV91bVSsvNtrJRiW6nGng==
+  dependencies:
+    locate-path "^6.0.0"
+    path-exists "^4.0.0"
+
 find-yarn-workspace-root@^1.1.0:
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/find-yarn-workspace-root/-/find-yarn-workspace-root-1.2.1.tgz#40eb8e6e7c2502ddfaa2577c176f221422f860db"
@@ -6592,6 +6711,11 @@ form-data@~2.3.2:
     combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
+forwarded@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.2.0.tgz#2269936428aad4c15c7ebe9779a84bf0b2a81811"
+  integrity sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==
+
 forwarded@~0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
@@ -6701,6 +6825,16 @@ fs-extra@^8.0.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-extra@^9.1.0:
+  version "9.1.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-9.1.0.tgz#5954460c764a8da2094ba3554bf839e6b9a7c86d"
+  integrity sha512-hcg3ZmepS30/7BSFqRvoo3DOMQu7IjqxO5nCDt+zM9XWjb33Wg7ziNT+Qvqbuc3+gWpzO02JubVyk2G4Zvo1OQ==
+  dependencies:
+    at-least-node "^1.0.0"
+    graceful-fs "^4.2.0"
+    jsonfile "^6.0.1"
+    universalify "^2.0.0"
+
 fs-minipass@^1.2.5:
   version "1.2.5"
   resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.5.tgz#06c277218454ec288df77ada54a03b8702aacb9d"
@@ -7432,6 +7566,17 @@ http-errors@1.6.3, http-errors@~1.6.2, http-errors@~1.6.3:
     setprototypeof "1.1.0"
     statuses ">= 1.4.0 < 2"
 
+http-errors@1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.8.1.tgz#7c3f28577cbc8a207388455dbd62295ed07bd68c"
+  integrity sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.4"
+    setprototypeof "1.2.0"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.1"
+
 http-parser-js@>=0.4.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.5.0.tgz#d65edbede84349d0dc30320815a15d39cc3cbbd8"
@@ -7485,7 +7630,7 @@ iconv-lite@0.4.23:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
-iconv-lite@^0.4.13, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
+iconv-lite@0.4.24, iconv-lite@^0.4.13, iconv-lite@^0.4.4, iconv-lite@~0.4.13:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
   integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
@@ -7561,6 +7706,11 @@ inherits@2, inherits@2.0.3, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, i
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
+inherits@2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
 ini@^1.3.4, ini@~1.3.0:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
@@ -7652,6 +7802,11 @@ ipaddr.js@1.8.0:
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.0.tgz#eaa33d6ddd7ace8f7f6fe0c9ca0440e706738b1e"
   integrity sha1-6qM9bd16zo9/b+DJygRA5wZzix4=
 
+ipaddr.js@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.1.tgz#bff38543eeb8984825079ff3a2a8e6cbd46781b3"
+  integrity sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==
+
 is-accessor-descriptor@^0.1.6:
   version "0.1.6"
   resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
@@ -7693,6 +7848,13 @@ is-callable@^1.1.4:
   resolved "https://registry.yarnpkg.com/is-callable/-/is-callable-1.1.4.tgz#1e1adf219e1eeb684d691f9d6a05ff0d30a24d75"
   integrity sha512-r5p9sxJjYnArLjObpjA4xu5EKI3CuKHkJXMhT7kwbpUyIFD1n5PMAsoPvWnvtZiNz7LjkYDRZhd7FlI0eMijEA==
 
+is-core-module@^2.8.1:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/is-core-module/-/is-core-module-2.8.1.tgz#f59fdfca701d5879d0a6b100a40aa1560ce27211"
+  integrity sha512-SdNCUs284hr40hFTFP6l0IfZ/RSrMXF3qgoRHd3/79unUTvrFO/JoXwkGm+5J/Oe3E/b5GsnG330uUNgRpu1PA==
+  dependencies:
+    has "^1.0.3"
+
 is-data-descriptor@^0.1.4:
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
@@ -8188,6 +8350,15 @@ jsonfile@^4.0.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
+jsonfile@^6.0.1:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-6.1.0.tgz#bc55b2634793c679ec6403094eb13698a6ec0aae"
+  integrity sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==
+  dependencies:
+    universalify "^2.0.0"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
@@ -8440,6 +8611,13 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
+locate-path@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-6.0.0.tgz#55321eb309febbc59c4801d931a72452a681d286"
+  integrity sha512-iPZK6eYjbxRu3uB4/WZ3EsEIMJFMqAoopl3R+zuq0UjcAm/MO6KCweDgPfP3elTztoKP3KtnVHxTn2NHBSDVUw==
+  dependencies:
+    p-locate "^5.0.0"
+
 lodash._baseassign@^3.0.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/lodash._baseassign/-/lodash._baseassign-3.2.0.tgz#8c38a099500f215ad09e59f1722fd0c52bfe0a4e"
@@ -8892,6 +9070,13 @@ lru-cache@^4.1.1:
     pseudomap "^1.0.2"
     yallist "^2.1.2"
 
+lru-cache@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
+  integrity sha512-Jo6dJ04CmSjuznwJSS3pUeWmd/H0ffTlkXXgwZi+eq1UCmqQwCh+eLsYOYCwY991i2Fah4h1BEMCx4qThGbsiA==
+  dependencies:
+    yallist "^4.0.0"
+
 ltgt@^2.1.2:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/ltgt/-/ltgt-2.2.1.tgz#f35ca91c493f7b73da0e07495304f17b31f87ee5"
@@ -9169,6 +9354,11 @@ mime-db@1.40.0:
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.40.0.tgz#a65057e998db090f732a68f6c276d387d4126c32"
   integrity sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==
 
+mime-db@1.52.0:
+  version "1.52.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
+  integrity sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==
+
 "mime-db@>= 1.36.0 < 2":
   version "1.38.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.38.0.tgz#1a2aab16da9eb167b49c6e4df2d9c68d63d8e2ad"
@@ -9205,12 +9395,19 @@ mime-types@~2.1.19:
   dependencies:
     mime-db "1.40.0"
 
+mime-types@~2.1.24, mime-types@~2.1.34:
+  version "2.1.35"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.35.tgz#381a871b62a734450660ae3deee44813f70d959a"
+  integrity sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==
+  dependencies:
+    mime-db "1.52.0"
+
 mime@1.4.1:
   version "1.4.1"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.4.1.tgz#121f9ebc49e3766f311a76e1fa1c8003c4b03aa6"
   integrity sha512-KI1+qOZu5DcW6wayYHSzR/tXKCDC5Om4s1z2QJjDULzLcmf3DvzS7oluY4HCTrc+9FiKmWUgeNLg7W3uIQvxtQ==
 
-mime@^1.2.11:
+mime@1.6.0, mime@^1.2.11:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
   integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
@@ -9372,6 +9569,11 @@ ms@2.0.0:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
   integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
+ms@2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+  integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
+
 ms@^2.0.0, ms@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
@@ -9447,6 +9649,11 @@ negotiator@0.6.1:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
   integrity sha1-KzJxhOiZIQEXeyhWP7XnECrNDKk=
 
+negotiator@0.6.3:
+  version "0.6.3"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.3.tgz#58e323a72fedc0d6f9cd4d31fe49f51479590ccd"
+  integrity sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==
+
 neo-async@^2.6.0:
   version "2.6.0"
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
@@ -9924,6 +10131,13 @@ p-limit@^2.0.0:
   dependencies:
     p-try "^2.0.0"
 
+p-limit@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-3.1.0.tgz#e1daccbe78d0d1388ca18c64fea38e3e57e3706b"
+  integrity sha512-TYOanM3wGwNGsZN2cVTYPArw454xnXj5qmWF1bEoAc4+cU/ol7GVh7odevjp1FNHduHc3KZMcFduxU5Xc6uJRQ==
+  dependencies:
+    yocto-queue "^0.1.0"
+
 p-locate@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-2.0.0.tgz#20a0103b222a70c8fd39cc2e580680f3dde5ec43"
@@ -9938,6 +10152,13 @@ p-locate@^3.0.0:
   dependencies:
     p-limit "^2.0.0"
 
+p-locate@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-5.0.0.tgz#83c8315c6785005e3bd021839411c9e110e6d834"
+  integrity sha512-LaNjtRWUBY++zB5nE/NwcaoMylSPk+S+ZHNB1TzdbMJMny6dynpAGt7X/tl/QYq3TIeE6nxHppbo2LGymrG5Pw==
+  dependencies:
+    p-limit "^3.0.2"
+
 p-map@^1.1.1:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/p-map/-/p-map-1.2.0.tgz#e4e94f311eabbc8633a1e79908165fca26241b6b"
@@ -10039,6 +10260,11 @@ parseurl@~1.3.2:
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.2.tgz#fc289d4ed8993119460c156253262cdc8de65bf3"
   integrity sha1-/CidTtiZMRlGDBViUyYs3I3mW/M=
 
+parseurl@~1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
+  integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
+
 parsimmon@^1.2.0:
   version "1.13.0"
   resolved "https://registry.yarnpkg.com/parsimmon/-/parsimmon-1.13.0.tgz#6e4ef3dbd45ed6ea6808be600ac4b9c8a44228cf"
@@ -10068,6 +10294,11 @@ path-exists@^3.0.0:
   resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
   integrity sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=
 
+path-exists@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-4.0.0.tgz#513bdbe2d3b95d7762e8c1137efa195c6c61b5b3"
+  integrity sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==
+
 path-is-absolute@1.0.1, path-is-absolute@^1.0.0, path-is-absolute@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
@@ -10093,6 +10324,11 @@ path-parse@^1.0.5, path-parse@^1.0.6:
   resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
   integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
 
+path-parse@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
+  integrity sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==
+
 path-posix@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/path-posix/-/path-posix-1.0.0.tgz#06b26113f56beab042545a23bfa88003ccac260f"
@@ -10297,6 +10533,14 @@ proxy-addr@~2.0.4:
     forwarded "~0.1.2"
     ipaddr.js "1.8.0"
 
+proxy-addr@~2.0.7:
+  version "2.0.7"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.7.tgz#f19fe69ceab311eeb94b42e70e8c2070f9ba1025"
+  integrity sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==
+  dependencies:
+    forwarded "0.2.0"
+    ipaddr.js "1.9.1"
+
 prr@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/prr/-/prr-0.0.0.tgz#1a84b85908325501411853d0081ee3fa86e2926a"
@@ -10382,6 +10626,11 @@ qs@6.5.2, qs@~6.5.2:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
   integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
 
+qs@6.9.6:
+  version "6.9.6"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.9.6.tgz#26ed3c8243a431b2924aca84cc90471f35d5a0ee"
+  integrity sha512-TIRk4aqYLNoJUbd+g2lEdz5kLWIuTMRagAXxl78Q0RiVjAOugHmeKNGdd3cwo/ktpf9aL9epCfFqWDEKysUlLQ==
+
 qs@^6.2.0, qs@^6.4.0:
   version "6.6.0"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.6.0.tgz#a99c0f69a8d26bf7ef012f871cdabb0aee4424c2"
@@ -10479,6 +10728,11 @@ range-parser@~1.2.0:
   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
   integrity sha1-9JvmtIeJTdxA3MlKMi9hEJLgDV4=
 
+range-parser@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
+
 raw-body@2.3.3:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.3.3.tgz#1b324ece6b5706e153855bc1148c65bb7f6ea0c3"
@@ -10489,6 +10743,16 @@ raw-body@2.3.3:
     iconv-lite "0.4.23"
     unpipe "1.0.0"
 
+raw-body@2.4.2:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.2.tgz#baf3e9c21eebced59dd6533ac872b71f7b61cb32"
+  integrity sha512-RPMAFUJP19WIet/99ngh6Iv8fzAbqum4Li7AD6DtGaW2RpMB/11xDoalPiJMTbu6I3hkbMVkATvZrqb9EEqeeQ==
+  dependencies:
+    bytes "3.1.1"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
+    unpipe "1.0.0"
+
 raw-body@~1.1.0:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-1.1.7.tgz#1d027c2bfa116acc6623bca8f00016572a87d425"
@@ -10906,6 +11170,14 @@ resolve-package-path@^1.0.11, resolve-package-path@^1.2.6:
     path-root "^0.1.1"
     resolve "^1.10.0"
 
+resolve-package-path@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/resolve-package-path/-/resolve-package-path-3.1.0.tgz#35faaa5d54a9c7dd481eb7c4b2a44410c9c763d8"
+  integrity sha512-2oC2EjWbMJwvSN6Z7DbDfJMnD8MYEouaLn5eIX0j8XwPsYCVIyY9bbnX88YHVkbr8XHqvZrYbxaLPibfTYKZMA==
+  dependencies:
+    path-root "^0.1.1"
+    resolve "^1.17.0"
+
 resolve-path@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/resolve-path/-/resolve-path-1.4.0.tgz#c4bda9f5efb2fce65247873ab36bb4d834fe16f7"
@@ -10940,6 +11212,15 @@ resolve@^1.1.6, resolve@^1.10.0, resolve@^1.3.2, resolve@^1.3.3, resolve@^1.4.0,
   dependencies:
     path-parse "^1.0.6"
 
+resolve@^1.17.0:
+  version "1.22.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.22.0.tgz#5e0b8c67c15df57a89bdbabe603a002f21731198"
+  integrity sha512-Hhtrw0nLeSrFQ7phPp4OOcVjLPIeMnRlr5mcnVuMe7M/7eBn98A3hmFRLoFo3DLZkivSYwhRUJTyPyWAk56WLw==
+  dependencies:
+    is-core-module "^2.8.1"
+    path-parse "^1.0.7"
+    supports-preserve-symlinks-flag "^1.0.0"
+
 responselike@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/responselike/-/responselike-1.0.2.tgz#918720ef3b631c5642be068f15ade5a46f4ba1e7"
@@ -11130,6 +11411,11 @@ safe-buffer@5.1.2, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, s
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
+safe-buffer@5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
+
 safe-json-parse@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/safe-json-parse/-/safe-json-parse-1.0.1.tgz#3e76723e38dfdda13c9b1d29a1e07ffee4b30b57"
@@ -11251,6 +11537,13 @@ semver@^6.0.0, semver@^6.2.0, semver@^6.3.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@^7.3.4:
+  version "7.3.5"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
+  integrity sha512-PoeGJYh8HK4BTO/a9Tf6ZG3veo/A7ZVsYrSA6J8ny9nb3B1VrpkuN+z9OE5wfE5p6H4LchYZsegiQgbJD94ZFQ==
+  dependencies:
+    lru-cache "^6.0.0"
+
 semver@~2.3.1:
   version "2.3.2"
   resolved "https://registry.yarnpkg.com/semver/-/semver-2.3.2.tgz#b9848f25d6cf36333073ec9ef8856d42f1233e52"
@@ -11275,6 +11568,25 @@ send@0.16.2:
     range-parser "~1.2.0"
     statuses "~1.4.0"
 
+send@0.17.2:
+  version "0.17.2"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.17.2.tgz#926622f76601c41808012c8bf1688fe3906f7820"
+  integrity sha512-UJYB6wFSJE3G00nEivR5rgWp8c2xXvJ3OPWPhmuteU0IKj8nKbG3DrjiOmLwpnHGYWAVwA69zmTm++YG0Hmwww==
+  dependencies:
+    debug "2.6.9"
+    depd "~1.1.2"
+    destroy "~1.0.4"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "1.8.1"
+    mime "1.6.0"
+    ms "2.1.3"
+    on-finished "~2.3.0"
+    range-parser "~1.2.1"
+    statuses "~1.5.0"
+
 serve-static@1.13.2:
   version "1.13.2"
   resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.13.2.tgz#095e8472fd5b46237db50ce486a43f4b86c6cec1"
@@ -11285,6 +11597,16 @@ serve-static@1.13.2:
     parseurl "~1.3.2"
     send "0.16.2"
 
+serve-static@1.14.2:
+  version "1.14.2"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.2.tgz#722d6294b1d62626d41b43a013ece4598d292bfa"
+  integrity sha512-+TMNA9AFxUEGuC0z2mevogSnn9MXKb4fa7ngeRMJaaGv8vTwnIEkKi+QGvPt33HSnf8pRS+WGM0EbMtCJLKMBQ==
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.3"
+    send "0.17.2"
+
 set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
@@ -11320,6 +11642,11 @@ setprototypeof@1.1.0:
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.0.tgz#d0bd85536887b6fe7c0d818cb962d9d91c54e656"
   integrity sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==
 
+setprototypeof@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.2.0.tgz#66c9a24a73f9fc28cbe66b09fed3d33dcaf1b424"
+  integrity sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==
+
 sha.js@^2.4.0, sha.js@^2.4.8:
   version "2.4.11"
   resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.4.11.tgz#37a5cf0b81ecbc6943de109ba2960d1b26584ae7"
@@ -11362,7 +11689,7 @@ signal-exit@^3.0.0, signal-exit@^3.0.2:
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
   integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
 
-silent-error@^1.0.0, silent-error@^1.0.1, silent-error@^1.1.0:
+silent-error@^1.0.0, silent-error@^1.0.1, silent-error@^1.1.0, silent-error@^1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/silent-error/-/silent-error-1.1.1.tgz#f72af5b0d73682a2ba1778b7e32cd8aa7c2d8662"
   integrity sha512-n4iEKyNcg4v6/jpb3c0/iyH2G1nzUNl7Gpqtn/mHIJK9S/q/7MCfoO4rwVOoO59qPFIc0hVHvMbiOJ0NdtxKKw==
@@ -11743,7 +12070,7 @@ static-extend@^0.1.1:
     define-property "^0.2.5"
     object-copy "^0.1.0"
 
-"statuses@>= 1.4.0 < 2":
+"statuses@>= 1.4.0 < 2", "statuses@>= 1.5.0 < 2", statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
   integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
@@ -11909,6 +12236,11 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
+supports-preserve-symlinks-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz#6eda4bd344a3c94aea376d4cc31bc77311039e09"
+  integrity sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==
+
 symlink-or-copy@^1.0.0, symlink-or-copy@^1.0.1, symlink-or-copy@^1.1.8, symlink-or-copy@^1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symlink-or-copy/-/symlink-or-copy-1.2.0.tgz#5d49108e2ab824a34069b68974486c290020b393"
@@ -12216,6 +12548,11 @@ to-utf8@0.0.1:
   resolved "https://registry.yarnpkg.com/to-utf8/-/to-utf8-0.0.1.tgz#d17aea72ff2fba39b9e43601be7b3ff72e089852"
   integrity sha1-0Xrqcv8vujm55DYBvns/9y4ImFI=
 
+toidentifier@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.1.tgz#3be34321a88a820ed1bd80dfaa33e479fbb8dd35"
+  integrity sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==
+
 tough-cookie@~2.3.3:
   version "2.3.4"
   resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.3.4.tgz#ec60cee38ac675063ffc97a5c18970578ee83655"
@@ -12362,6 +12699,14 @@ type-is@~1.6.16:
     media-typer "0.3.0"
     mime-types "~2.1.18"
 
+type-is@~1.6.18:
+  version "1.6.18"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
+  integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.24"
+
 typedarray-to-buffer@~1.0.0:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/typedarray-to-buffer/-/typedarray-to-buffer-1.0.4.tgz#9bb8ba0e841fb3f4cf1fe7c245e9f3fa8a5fe99c"
@@ -12500,6 +12845,11 @@ universalify@^0.1.0:
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
   integrity sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==
 
+universalify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"
+  integrity sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
@@ -12954,6 +13304,11 @@ yallist@^3.0.0, yallist@^3.0.2:
   resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
   integrity sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==
 
+yallist@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-4.0.0.tgz#9bb92790d9c0effec63be73519e11a35019a3a72"
+  integrity sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==
+
 yam@^0.0.24:
   version "0.0.24"
   resolved "https://registry.yarnpkg.com/yam/-/yam-0.0.24.tgz#11e9630444735f66a561d29221407de6d037cd95"
@@ -13037,6 +13392,11 @@ yeast@0.1.2:
   resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"
   integrity sha1-AI4G2AlDIMNy28L47XagymyKxBk=
 
+yocto-queue@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/yocto-queue/-/yocto-queue-0.1.0.tgz#0294eb3dee05028d31ee1a5fa2c556a6aaf10a1b"
+  integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==
+
 zip-stream@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04"