chore: update typescript samples (#24159)

Author: Mattias-Sehlstedt

samples/client/petstore/typescript-fetch/builds/kebab-case/models/enum-test.ts

@@ -142,7 +142,7 @@ export type EnumTestEnumNumberEnum = typeof EnumTestEnumNumberEnum[keyof typeof
  * Check if a given object implements the EnumTest interface.
  */
 export function instanceOfEnumTest(value: object): value is EnumTest {
-    if ((!('enumStringRequired' in value) && !('enum_string_required' in value)) || (value['enumStringRequired'] === undefined && value['enum_string_required'] === undefined)) return false;
+    if ((!('enumStringRequired' in (value as Record<string, any>)) && !('enum_string_required' in (value as Record<string, any>))) || ((value as Record<string, any>)['enumStringRequired'] === undefined && (value as Record<string, any>)['enum_string_required'] === undefined)) return false;
     return true;
 }
 

samples/client/petstore/typescript-fetch/builds/kebab-case/models/format-test.ts

@@ -122,7 +122,7 @@ export interface FormatTest {
  */
 export function instanceOfFormatTest(value: object): value is FormatTest {
     if (!('number' in value) || value['number'] === undefined) return false;
-    if ((!('_byte' in value) && !('byte' in value)) || (value['_byte'] === undefined && value['byte'] === undefined)) return false;
+    if ((!('_byte' in (value as Record<string, any>)) && !('byte' in (value as Record<string, any>))) || ((value as Record<string, any>)['_byte'] === undefined && (value as Record<string, any>)['byte'] === undefined)) return false;
     if (!('date' in value) || value['date'] === undefined) return false;
     if (!('password' in value) || value['password'] === undefined) return false;
     return true;