diff --git a/common/changes/@typespec/compiler/reflection-model-scalar_2023-04-17-15-46.json b/common/changes/@typespec/compiler/reflection-model-scalar_2023-04-17-15-46.json
new file mode 100644
index 00000000000..271711c8a4d
--- /dev/null
+++ b/common/changes/@typespec/compiler/reflection-model-scalar_2023-04-17-15-46.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@typespec/compiler",
+      "comment": "Added `Model` and `Scalar` to Reflection namespace",
+      "type": "none"
+    }
+  ],
+  "packageName": "@typespec/compiler"
+}
\ No newline at end of file
diff --git a/common/changes/@typespec/openapi/reflection-model-scalar_2023-04-18-16-41.json b/common/changes/@typespec/openapi/reflection-model-scalar_2023-04-18-16-41.json
new file mode 100644
index 00000000000..dfd5c02fb78
--- /dev/null
+++ b/common/changes/@typespec/openapi/reflection-model-scalar_2023-04-18-16-41.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@typespec/openapi",
+      "comment": "Update decorator declaration to use `Model` instead of `object`",
+      "type": "none"
+    }
+  ],
+  "packageName": "@typespec/openapi"
+}
\ No newline at end of file
diff --git a/common/changes/@typespec/openapi3/reflection-model-scalar_2023-04-18-16-41.json b/common/changes/@typespec/openapi3/reflection-model-scalar_2023-04-18-16-41.json
new file mode 100644
index 00000000000..39d04a8cb92
--- /dev/null
+++ b/common/changes/@typespec/openapi3/reflection-model-scalar_2023-04-18-16-41.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@typespec/openapi3",
+      "comment": "Update decorator declaration to use `Model` instead of `object`",
+      "type": "none"
+    }
+  ],
+  "packageName": "@typespec/openapi3"
+}
\ No newline at end of file
diff --git a/common/changes/@typespec/rest/reflection-model-scalar_2023-04-18-16-41.json b/common/changes/@typespec/rest/reflection-model-scalar_2023-04-18-16-41.json
new file mode 100644
index 00000000000..b87ee272482
--- /dev/null
+++ b/common/changes/@typespec/rest/reflection-model-scalar_2023-04-18-16-41.json
@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@typespec/rest",
+      "comment": "Update decorator declaration to use `Model` instead of `object`",
+      "type": "none"
+    }
+  ],
+  "packageName": "@typespec/rest"
+}
\ No newline at end of file
diff --git a/docs/extending-typespec/create-decorators.md b/docs/extending-typespec/create-decorators.md
index 140140a5ce7..0e0ebbcfa5f 100644
--- a/docs/extending-typespec/create-decorators.md
+++ b/docs/extending-typespec/create-decorators.md
@@ -20,7 +20,7 @@ This part is optional but provides great value:
 A decorator signature can be declared using the `dec` keyword. As we are implementing the decorator in JS (only choice right now), we must apply the `extern` modifier as well.
 
 ```typespec
-extern dec logType(target: TypeSpec.Reflection.Type, name: TypeSpec.Reflection.StringLiteral);
+extern dec logType(target: unknown, name: string);
 ```
 
 ## Decorator target
diff --git a/docs/standard-library/built-in-decorators.md b/docs/standard-library/built-in-decorators.md
index 6920c543d3c..a23aa8171bd 100644
--- a/docs/standard-library/built-in-decorators.md
+++ b/docs/standard-library/built-in-decorators.md
@@ -29,12 +29,12 @@ dec deprecated(target: unknown, message: string)
 Specify the property to be used to discriminate this type.
 
 ```typespec
-dec discriminator(target: object | Union, propertyName: string)
+dec discriminator(target: Model | Union, propertyName: string)
 ```
 
 #### Target
 
-`union object | Union`
+`union Model | Union`
 
 #### Parameters
 | Name | Type | Description |
@@ -84,12 +84,12 @@ dec doc(target: unknown, doc: string, formatArgs?: object)
 Specify that this model is an error type. Operations return error types when the operation has failed.
 
 ```typespec
-dec error(target: object)
+dec error(target: Model)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 None
@@ -550,12 +550,12 @@ name: string;
 
 
 ```typespec
-dec withDefaultKeyVisibility(target: object, visibility: unknown)
+dec withDefaultKeyVisibility(target: Model, visibility: unknown)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 | Name | Type | Description |
@@ -567,12 +567,12 @@ dec withDefaultKeyVisibility(target: object, visibility: unknown)
 
 
 ```typespec
-dec withoutDefaultValues(target: object)
+dec withoutDefaultValues(target: Model)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 None
@@ -582,12 +582,12 @@ None
 
 
 ```typespec
-dec withoutOmittedProperties(target: object, omit: string | Union)
+dec withoutOmittedProperties(target: Model, omit: string | Union)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 | Name | Type | Description |
@@ -599,12 +599,12 @@ dec withoutOmittedProperties(target: object, omit: string | Union)
 
 
 ```typespec
-dec withUpdateableProperties(target: object)
+dec withUpdateableProperties(target: Model)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 None
@@ -623,12 +623,12 @@ When using an emitter that applies visibility automatically, it is generally
 not necessary to use this decorator.
 
 ```typespec
-dec withVisibility(target: object, ...visibilities: string[])
+dec withVisibility(target: Model, ...visibilities: string[])
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 | Name | Type | Description |
diff --git a/docs/standard-library/openapi/reference/decorators.md b/docs/standard-library/openapi/reference/decorators.md
index 71e00c58b8d..ee669934fc6 100644
--- a/docs/standard-library/openapi/reference/decorators.md
+++ b/docs/standard-library/openapi/reference/decorators.md
@@ -14,12 +14,12 @@ Specify that this model is to be treated as the OpenAPI `default` response.
 This differs from the compiler built-in `@error` decorator as this does not necessarily represent an error.
 
 ```typespec
-dec OpenAPI.defaultResponse(target: object)
+dec OpenAPI.defaultResponse(target: Model)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 
diff --git a/docs/standard-library/rest/reference/decorators.md b/docs/standard-library/rest/reference/decorators.md
index 68c8b4c424a..4028cfae4d2 100644
--- a/docs/standard-library/rest/reference/decorators.md
+++ b/docs/standard-library/rest/reference/decorators.md
@@ -31,12 +31,12 @@ dec TypeSpec.Rest.action(target: Operation, name?: string)
 Defines the separator string that is inserted before the action name in auto-generated routes for actions.
 
 ```typespec
-dec TypeSpec.Rest.actionSeparator(target: object | ModelProperty | Operation, seperator: / | : | /:)
+dec TypeSpec.Rest.actionSeparator(target: Model | ModelProperty | Operation, seperator: / | : | /:)
 ```
 
 #### Target
 
-`union object | ModelProperty | Operation`
+`union Model | ModelProperty | Operation`
 
 #### Parameters
 
@@ -74,7 +74,7 @@ get(@segment("pets") @path id: string): void; //-> route: /pets/{id}
 Specify this operation is a collection action. (Scopped to a resource, /pets/my-action)
 
 ```typespec
-dec TypeSpec.Rest.collectionAction(target: Operation, resourceType: object, name?: string)
+dec TypeSpec.Rest.collectionAction(target: Operation, resourceType: Model, name?: string)
 ```
 
 #### Target
@@ -85,7 +85,7 @@ dec TypeSpec.Rest.collectionAction(target: Operation, resourceType: object, name
 
 | Name         | Type            | Description |
 | ------------ | --------------- | ----------- |
-| resourceType | `model object`  |             |
+| resourceType | `Model`         |             |
 | name         | `scalar string` |             |
 
 ### `@createsOrReplacesResource` {#@TypeSpec.Rest.createsOrReplacesResource}
@@ -93,7 +93,7 @@ dec TypeSpec.Rest.collectionAction(target: Operation, resourceType: object, name
 Specify that this is a CreateOrReplace operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.createsOrReplacesResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.createsOrReplacesResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -102,16 +102,16 @@ dec TypeSpec.Rest.createsOrReplacesResource(target: Operation, resourceType: obj
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@createsOrUpdatesResource` {#@TypeSpec.Rest.createsOrUpdatesResource}
 
 Specify that this is a CreatesOrUpdate operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.createsOrUpdatesResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.createsOrUpdatesResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -120,16 +120,16 @@ dec TypeSpec.Rest.createsOrUpdatesResource(target: Operation, resourceType: obje
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@createsResource` {#@TypeSpec.Rest.createsResource}
 
 Specify that this is a Create operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.createsResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.createsResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -138,16 +138,16 @@ dec TypeSpec.Rest.createsResource(target: Operation, resourceType: object)
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@deletesResource` {#@TypeSpec.Rest.deletesResource}
 
 Specify that this is a Delete operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.deletesResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.deletesResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -156,16 +156,16 @@ dec TypeSpec.Rest.deletesResource(target: Operation, resourceType: object)
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@listsResource` {#@TypeSpec.Rest.listsResource}
 
 Specify that this is a List operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.listsResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.listsResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -174,16 +174,16 @@ dec TypeSpec.Rest.listsResource(target: Operation, resourceType: object)
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@readsResource` {#@TypeSpec.Rest.readsResource}
 
 Specify that this is a Read operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.readsResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.readsResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -192,21 +192,21 @@ dec TypeSpec.Rest.readsResource(target: Operation, resourceType: object)
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
 
 ### `@resource` {#@TypeSpec.Rest.resource}
 
 Mark this model as a resource type with a name.
 
 ```typespec
-dec TypeSpec.Rest.resource(target: object, collectionName: string)
+dec TypeSpec.Rest.resource(target: Model, collectionName: string)
 ```
 
 #### Target
 
-`model object`
+`Model`
 
 #### Parameters
 
@@ -219,12 +219,12 @@ dec TypeSpec.Rest.resource(target: object, collectionName: string)
 Defines the preceding path segment for a
 
 ```typespec
-dec TypeSpec.Rest.segment(target: object | ModelProperty | Operation, name: string)
+dec TypeSpec.Rest.segment(target: Model | ModelProperty | Operation, name: string)
 ```
 
 #### Target
 
-`union object | ModelProperty | Operation`
+`union Model | ModelProperty | Operation`
 
 #### Parameters
 
@@ -237,7 +237,7 @@ dec TypeSpec.Rest.segment(target: object | ModelProperty | Operation, name: stri
 Returns the URL segment of a given model if it has `@segment` and `@key` decorator.
 
 ```typespec
-dec TypeSpec.Rest.segmentOf(target: Operation, type: object)
+dec TypeSpec.Rest.segmentOf(target: Operation, type: Model)
 ```
 
 #### Target
@@ -246,16 +246,16 @@ dec TypeSpec.Rest.segmentOf(target: Operation, type: object)
 
 #### Parameters
 
-| Name | Type           | Description |
-| ---- | -------------- | ----------- |
-| type | `model object` |             |
+| Name | Type    | Description |
+| ---- | ------- | ----------- |
+| type | `Model` |             |
 
 ### `@updatesResource` {#@TypeSpec.Rest.updatesResource}
 
 Specify that this is a Update operation for a given resource.
 
 ```typespec
-dec TypeSpec.Rest.updatesResource(target: Operation, resourceType: object)
+dec TypeSpec.Rest.updatesResource(target: Operation, resourceType: Model)
 ```
 
 #### Target
@@ -264,6 +264,6 @@ dec TypeSpec.Rest.updatesResource(target: Operation, resourceType: object)
 
 #### Parameters
 
-| Name         | Type           | Description |
-| ------------ | -------------- | ----------- |
-| resourceType | `model object` |             |
+| Name         | Type    | Description |
+| ------------ | ------- | ----------- |
+| resourceType | `Model` |             |
diff --git a/packages/compiler/core/checker.ts b/packages/compiler/core/checker.ts
index 583828b19b7..bc923adbaa9 100644
--- a/packages/compiler/core/checker.ts
+++ b/packages/compiler/core/checker.ts
@@ -5362,14 +5362,15 @@ function isTemplatedNode(node: Node): node is TemplateableNode {
  * Mapping from the reflection models to Type["kind"] value
  */
 const ReflectionNameToKind = {
-  Model: "Model",
-  ModelProperty: "ModelProperty",
-  Interface: "Interface",
   Enum: "Enum",
   EnumMember: "EnumMember",
-  TemplateParameter: "TemplateParameter",
+  Interface: "Interface",
+  Model: "Model",
+  ModelProperty: "ModelProperty",
   Namespace: "Namespace",
   Operation: "Operation",
+  Scalar: "Scalar",
+  TemplateParameter: "TemplateParameter",
   Tuple: "Tuple",
   Union: "Union",
   UnionVariant: "UnionVariant",
diff --git a/packages/compiler/lib/decorators.tsp b/packages/compiler/lib/decorators.tsp
index 9ad75fc8dfb..b84d62790b6 100644
--- a/packages/compiler/lib/decorators.tsp
+++ b/packages/compiler/lib/decorators.tsp
@@ -92,7 +92,7 @@ extern dec service(target: Namespace, options?: ServiceOptions);
  * }
  * ```
  */
-extern dec error(target: object);
+extern dec error(target: Model);
 
 /**
  * Specify a known data format hint for this string type. For example `uuid`, `uri`, etc.
@@ -335,7 +335,7 @@ extern dec projectedName(target: unknown, targetName: string, projectedName: str
  * model Dog extends Pet  {kind: "dog", bark: boolean}
  * ```
  */
-extern dec discriminator(target: object | Union, propertyName: string);
+extern dec discriminator(target: Model | Union, propertyName: string);
 
 /**
  * Indicates that a property is only considered to be present or applicable ("visible") with
@@ -407,11 +407,11 @@ extern dec visibility(target: ModelProperty, ...visibilities: string[]);
  * }
  * ```
  */
-extern dec withVisibility(target: object, ...visibilities: string[]);
-extern dec withDefaultKeyVisibility(target: object, visibility: unknown);
-extern dec withUpdateableProperties(target: object);
-extern dec withoutDefaultValues(target: object);
-extern dec withoutOmittedProperties(target: object, omit: string | Union);
+extern dec withVisibility(target: Model, ...visibilities: string[]);
+extern dec withDefaultKeyVisibility(target: Model, visibility: unknown);
+extern dec withUpdateableProperties(target: Model);
+extern dec withoutDefaultValues(target: Model);
+extern dec withoutOmittedProperties(target: Model, omit: string | Union);
 
 //---------------------------------------------------------------------------
 // Debugging
diff --git a/packages/compiler/lib/reflection.tsp b/packages/compiler/lib/reflection.tsp
index aa193a75469..38876f7798f 100644
--- a/packages/compiler/lib/reflection.tsp
+++ b/packages/compiler/lib/reflection.tsp
@@ -1,10 +1,12 @@
 namespace TypeSpec.Reflection;
 
-model ModelProperty {}
-model Interface {}
 model Enum {}
 model EnumMember {}
+model Interface {}
+model Model {}
+model ModelProperty {}
 model Namespace {}
 model Operation {}
+model Scalar {}
 model Union {}
 model UnionVariant {}
diff --git a/packages/compiler/test/checker/relation.test.ts b/packages/compiler/test/checker/relation.test.ts
index 7c00ba4c699..5cd6297c32e 100644
--- a/packages/compiler/test/checker/relation.test.ts
+++ b/packages/compiler/test/checker/relation.test.ts
@@ -1,5 +1,5 @@
 import { deepStrictEqual, ok, strictEqual } from "assert";
-import { Diagnostic, Model, ModelPropertyNode } from "../../core/index.js";
+import { Diagnostic, Model, ModelPropertyNode, Type } from "../../core/index.js";
 import {
   BasicTestRunner,
   DiagnosticMatch,
@@ -764,4 +764,55 @@ describe("compiler: checker: type relations", () => {
       expectDiagnosticEmpty(diagnostics);
     });
   });
+
+  describe("Reflection", () => {
+    function testReflectionType(name: Type["kind"], ref: string, code: string) {
+      describe(`Reflection.${name}`, () => {
+        it(`can assign ${name}`, async () => {
+          await expectTypeAssignable({
+            source: ref,
+            target: `TypeSpec.Reflection.${name}`,
+            commonCode: code,
+          });
+        });
+
+        it(`cannot assign union of ${name}`, async () => {
+          await expectTypeNotAssignable(
+            {
+              source: `${ref} | ${ref}`,
+              target: `TypeSpec.Reflection.${name}`,
+              commonCode: code,
+            },
+            { code: "unassignable" }
+          );
+        });
+      });
+    }
+
+    testReflectionType("Enum", "Foo", `enum Foo {a, b, c}`);
+    testReflectionType("EnumMember", "Foo.a", `enum Foo {a, b, c}`);
+    testReflectionType("Interface", "Foo", `interface Foo {a(): void}`);
+    testReflectionType("Model", "Foo", `model Foo {a: string, b: string}`);
+    testReflectionType("ModelProperty", "Foo.a", `model Foo {a: string, b: string}`);
+    testReflectionType("Namespace", "Foo", `namespace Foo {}`);
+    testReflectionType("Operation", "foo", `op foo(): void;`);
+    testReflectionType("Scalar", "foo", `scalar foo;`);
+    describe(`Reflection.Union`, () => {
+      it(`can assign union expression`, async () => {
+        await expectTypeAssignable({
+          source: "Foo",
+          target: `TypeSpec.Reflection.Union`,
+          commonCode: `alias Foo = "abc" | "def";`,
+        });
+      });
+      it(`can assign named union`, async () => {
+        await expectTypeAssignable({
+          source: "Foo",
+          target: `TypeSpec.Reflection.Union`,
+          commonCode: `union Foo {a: string, b: int32};`,
+        });
+      });
+    });
+    testReflectionType("UnionVariant", "Foo.a", `union Foo {a: string, b: int32};`);
+  });
 });
diff --git a/packages/compiler/test/decorators/decorators.test.ts b/packages/compiler/test/decorators/decorators.test.ts
index 9433306858a..c8c4c9ccdc5 100644
--- a/packages/compiler/test/decorators/decorators.test.ts
+++ b/packages/compiler/test/decorators/decorators.test.ts
@@ -188,7 +188,7 @@ describe("compiler: built-in decorators", () => {
       strictEqual(diagnostics[0].code, "decorator-wrong-target");
       strictEqual(
         diagnostics[0].message,
-        `Cannot apply @error decorator to A since it is not assignable to object`
+        `Cannot apply @error decorator to A since it is not assignable to Model`
       );
     });
   });
diff --git a/packages/openapi/lib/decorators.tsp b/packages/openapi/lib/decorators.tsp
index 7c3f0d7c2d3..7ed7c4f9438 100644
--- a/packages/openapi/lib/decorators.tsp
+++ b/packages/openapi/lib/decorators.tsp
@@ -45,7 +45,7 @@ extern dec extension(target: unknown, key: string, value: unknown);
  * op listPets(): Pet[] | PetStoreResponse;
  * ```
  */
-extern dec defaultResponse(target: object);
+extern dec defaultResponse(target: Model);
 
 /**
  * Specify the OpenAPI `externalDocs` property for this type.
diff --git a/packages/openapi3/test/discriminator.test.ts b/packages/openapi3/test/discriminator.test.ts
index e1207302e2e..d94d72d78d0 100644
--- a/packages/openapi3/test/discriminator.test.ts
+++ b/packages/openapi3/test/discriminator.test.ts
@@ -12,7 +12,7 @@ describe("openapi3: discriminated unions", () => {
     expectDiagnostics(diagnostics, {
       code: "decorator-wrong-target",
       message:
-        "Cannot apply @discriminator decorator to Foo since it is not assignable to object | Union",
+        "Cannot apply @discriminator decorator to Foo since it is not assignable to Model | Union",
     });
   });
 
diff --git a/packages/rest/lib/rest-decorators.tsp b/packages/rest/lib/rest-decorators.tsp
index 90c0895651f..c86b4368f76 100644
--- a/packages/rest/lib/rest-decorators.tsp
+++ b/packages/rest/lib/rest-decorators.tsp
@@ -27,75 +27,75 @@ extern dec autoRoute(target: Interface | Operation);
  *   get(@segment("pets") @path id: string): void; //-> route: /pets/{id}
  * }
  */
-extern dec segment(target: object | ModelProperty | Operation, name: string);
+extern dec segment(target: Model | ModelProperty | Operation, name: string);
 
 /**
  * Returns the URL segment of a given model if it has `@segment` and `@key` decorator.
  */
-extern dec segmentOf(target: Operation, type: object);
+extern dec segmentOf(target: Operation, type: Model);
 
 /**
  * Defines the separator string that is inserted before the action name in auto-generated routes for actions.
  *
  * @param seperator Seperator seperating the action segment from the rest of the url
  */
-extern dec actionSeparator(target: object | ModelProperty | Operation, seperator: "/" | ":" | "/:");
+extern dec actionSeparator(target: Model | ModelProperty | Operation, seperator: "/" | ":" | "/:");
 
 /**
  * Mark this model as a resource type with a name.
  *
  * @param collectionName type's collection name
  */
-extern dec resource(target: object, collectionName: string);
+extern dec resource(target: Model, collectionName: string);
 
 /**
  * Specify that this is a Read operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec readsResource(target: Operation, resourceType: object);
+extern dec readsResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a Create operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec createsResource(target: Operation, resourceType: object);
+extern dec createsResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a CreateOrReplace operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec createsOrReplacesResource(target: Operation, resourceType: object);
+extern dec createsOrReplacesResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a CreatesOrUpdate operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec createsOrUpdatesResource(target: Operation, resourceType: object);
+extern dec createsOrUpdatesResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a Update operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec updatesResource(target: Operation, resourceType: object);
+extern dec updatesResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a Delete operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec deletesResource(target: Operation, resourceType: object);
+extern dec deletesResource(target: Operation, resourceType: Model);
 
 /**
  * Specify that this is a List operation for a given resource.
  *
  * @param resource Resource marked with @resource
  */
-extern dec listsResource(target: Operation, resourceType: object);
+extern dec listsResource(target: Operation, resourceType: Model);
 
 /**
  * Specify this operation is an action. (Scopped to a resource item /pets/{petId}/my-action)
@@ -105,8 +105,8 @@ extern dec action(target: Operation, name?: string);
 /**
  * Specify this operation is a collection action. (Scopped to a resource, /pets/my-action)
  */
-extern dec collectionAction(target: Operation, resourceType: object, name?: string);
+extern dec collectionAction(target: Operation, resourceType: Model, name?: string);
 
 namespace Private {
-  extern dec resourceLocation(target: string, resourceType: object);
+  extern dec resourceLocation(target: string, resourceType: Model);
 }