QnAMaker DTO changes for Multiturn (#5738)

* DTO updates for multiturn support

* fix message

* max len of display text

* Resolve comments

* missed additional property

* Fix Namespace in Ruby Readme Qnamaker

specification/cognitiveservices/data-plane/QnAMaker/readme.ruby.md

@@ -21,6 +21,6 @@ These settings apply only when `--tag=release_4_0 --ruby` is specified on the co
 Please also specify `--ruby-sdks-folder=<path to the root directory of your azure-sdk-for-ruby clone>`.
 
 ``` yaml $(tag) == 'release_4_0' && $(ruby)
-namespace: "Azure::CognitiveServices::QnAMaker::V4"
+namespace: "Azure::CognitiveServices::Qnamaker::V4_0"
 output-folder: $(ruby-sdks-folder)/data/azure_cognitiveservices_qnamaker/lib
 ```

specification/cognitiveservices/data-plane/QnAMaker/stable/v4.0/QnAMaker.json

@@ -622,6 +622,14 @@
               "$ref": "#/definitions/UpdateMetadataDTO"
             }
           ]
+        },
+        "context": {
+          "description": "Context associated with Qna to be updated.",
+          "allOf": [
+            {
+              "$ref": "#/definitions/UpdateContextDTO"
+            }
+          ]
         }
       }
     },
@@ -671,6 +679,31 @@
         }
       }
     },
+    "UpdateContextDTO": {
+      "type": "object",
+      "description": "Update Body schema to represent context to be updated",
+      "properties": {
+        "promptsToDelete": {
+          "type": "array",
+          "description": "List of prompts associated with qna to be deleted",
+          "items": {
+            "type": "integer",
+            "format": "int32"
+          }
+        },
+        "promptsToAdd": {
+          "type": "array",
+          "description": "List of prompts to be added to the qna.",
+          "items": {
+            "$ref": "#/definitions/PromptDTO"
+          }
+        },
+        "isContextOnly": {
+          "type": "boolean",
+          "description": "To mark if a prompt is relevant only with a previous question or not.\ntrue - Do not include this QnA as search result for queries without context\nfalse - ignores context and includes this QnA in search result"
+        }
+      }
+    },
     "DeleteKbContentsDTO": {
       "type": "object",
       "description": "PATCH body schema of Delete Operation in UpdateKb",
@@ -870,6 +903,61 @@
           "items": {
             "$ref": "#/definitions/MetadataDTO"
           }
+        },
+        "context": {
+          "description": "Context of a QnA",
+          "allOf": [
+            {
+              "$ref": "#/definitions/ContextDTO"
+            }
+          ]
+        }
+      }
+    },
+    "ContextDTO": {
+      "type": "object",
+      "description": "Context associated with Qna.",
+      "properties": {
+        "isContextOnly": {
+          "type": "boolean",
+          "description": "To mark if a prompt is relevant only with a previous question or not.\ntrue - Do not include this QnA as search result for queries without context\nfalse - ignores context and includes this QnA in search result"
+        },
+        "prompts": {
+          "type": "array",
+          "description": "List of prompts associated with the answer.",
+          "maxItems": 20,
+          "items": {
+            "$ref": "#/definitions/PromptDTO"
+          }
+        }
+      }
+    },
+    "PromptDTO": {
+      "type": "object",
+      "description": "Prompt for an answer.",
+      "properties": {
+        "displayOrder": {
+          "type": "integer",
+          "description": "Index of the prompt - used in ordering of the prompts",
+          "format": "int32"
+        },
+        "qnaId": {
+          "type": "integer",
+          "description": "Qna id corresponding to the prompt - if QnaId is present, QnADTO object is ignored.",
+          "format": "int32"
+        },
+        "qna": {
+          "description": "QnADTO - Either QnaId or QnADTO needs to be present in a PromptDTO object",
+          "allOf": [
+            {
+              "$ref": "#/definitions/QnADTO"
+            }
+          ]
+        },
+        "displayText": {
+          "type": "string",
+          "description": "Text displayed to represent a follow up question prompt",
+          "maxLength": 200
         }
       }
     },