make value generic and create fieldType enum for FieldValueDirectAnswer

src/models/searchservice/response/DirectAnswer.ts

@@ -6,7 +6,7 @@ import { DirectAnswerType } from './DirectAnswerType';
  *
  * @public
  */
-export interface DirectAnswer {
+export interface DirectAnswer<T = unknown> {
   /** The {@link DirectAnswerType}. */
   type: DirectAnswerType,
   /**
@@ -15,7 +15,7 @@ export interface DirectAnswer {
    * @remarks
    * A value will not be present if the {@link DirectAnswer.fieldType} is 'rich_text'.
    */
-  value?: string,
+  value?: T,
   /** The entity associated with the direct answer. */
   relatedResult: Result,
   /** The vertical key of the direct answer. */

src/models/searchservice/response/DirectAnswerFieldType.ts

@@ -0,0 +1,22 @@
+/**
+ * Type for value of DirectAnswer.
+ *
+ * @public
+ */
+export enum DirectAnswerFieldType {
+  Url = 'url',
+  ComplexUrl = 'complex_url',
+  IOSAppUrl = 'ios_app_url',
+  AndroidAppUrl = 'android_app_url',
+  FacebookUrl = 'facebook_url',
+  Email = 'email',
+  InstagramHandle = 'instagram_handle',
+  TwitterHandle = 'twitter_handle',
+  Phone = 'phone',
+  Address = 'address',
+  Hours = 'hours',
+  Decimal = 'decimal',
+  RichText = 'rich_text',
+  SingleLineText = 'single_line_text',
+  MultiLineText = 'multi_line_text'
+}

src/models/searchservice/response/FeaturedSnippetDirectAnswer.ts

@@ -8,7 +8,7 @@ import { Snippet } from './Snippet';
  *
  * @public
  */
-export interface FeaturedSnippetDirectAnswer extends DirectAnswer {
+export interface FeaturedSnippetDirectAnswer extends DirectAnswer<string> {
   /** {@link DirectAnswerType}.FeaturedSnippet. */
   type: DirectAnswerType.FeaturedSnippet,
   /** {@inheritDoc DirectAnswer.value} */

src/models/searchservice/response/FieldValueDirectAnswer.ts

@@ -7,11 +7,11 @@ import { Result } from './Result';
  *
  * @public
  */
-export interface FieldValueDirectAnswer extends DirectAnswer {
+export interface FieldValueDirectAnswer<T = unknown> extends DirectAnswer<T> {
   /** {@link DirectAnswerType}.FieldValue. */
   type: DirectAnswerType.FieldValue,
   /** {@inheritDoc DirectAnswer.value} */
-  value: string,
+  value: T,
   /** {@inheritDoc DirectAnswer.relatedResult} */
   relatedResult: Result,
   /** {@inheritDoc DirectAnswer.verticalKey} */