Adding Models to Typespec for CLU

specification/cognitiveservices/Language.Conversations/common.tsp

@@ -16,7 +16,7 @@ using Azure.Core.Traits;
 })
 namespace Azure.AI.Language.Conversations;
 
-alias ErrorResponse = Azure.Core.Foundations.ErrorResponse;
+model ErrorResponse is Azure.Core.Foundations.ErrorResponse;
 
 @doc("An object containing more specific information about the error. As per Microsoft One API guidelines - https://github.com/Microsoft/api-guidelines/blob/vNext/Guidelines.md#7102-error-condition-responses.")
 model InnerErrorModel extends Record<unknown> {

specification/cognitiveservices/Language.Conversations/tsp-output/@azure-tools/typespec-autorest/azure.ai.language.conversations.json

@@ -323,6 +323,55 @@
         "modelAsString": true
       }
     },
+    "Azure.Core.Foundations.Error": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string",
+          "description": "One of a server-defined set of error codes."
+        },
+        "message": {
+          "type": "string",
+          "description": "A human-readable representation of the error."
+        },
+        "target": {
+          "type": "string",
+          "description": "The target of the error."
+        },
+        "details": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/Azure.Core.Foundations.Error"
+          },
+          "x-ms-identifiers": [],
+          "description": "An array of details about specific errors that led to this reported error.",
+          "x-typespec-name": "Azure.Core.Foundations.Error[]"
+        },
+        "innererror": {
+          "$ref": "#/definitions/Azure.Core.Foundations.InnerError",
+          "description": "An object containing more specific information than the current object about the error."
+        }
+      },
+      "description": "The error object.",
+      "required": [
+        "code",
+        "message"
+      ]
+    },
+    "Azure.Core.Foundations.InnerError": {
+      "type": "object",
+      "properties": {
+        "code": {
+          "type": "string",
+          "description": "One of a server-defined set of error codes."
+        },
+        "innererror": {
+          "$ref": "#/definitions/Azure.Core.Foundations.InnerError",
+          "description": "Inner error."
+        }
+      },
+      "description": "An object containing more specific information about the error. As per Microsoft One API guidelines - https://github.com/Microsoft/api-guidelines/blob/vNext/Guidelines.md#7102-error-condition-responses."
+    },
     "BaseExtraInformation": {
       "type": "object",
       "properties": {
@@ -820,6 +869,19 @@
         "modelAsString": true
       }
     },
+    "ErrorResponse": {
+      "type": "object",
+      "properties": {
+        "error": {
+          "$ref": "#/definitions/Azure.Core.Foundations.Error",
+          "description": "The error object."
+        }
+      },
+      "description": "A response containing error details.",
+      "required": [
+        "error"
+      ]
+    },
     "InformationResolution": {
       "type": "object",
       "properties": {