docs: ✏️ add example for mediator affirmation model

src/assets/assets.controller.ts

@@ -439,7 +439,7 @@ export class AssetsController {
   @ApiOperation({
     summary: "Fetch an Asset's required mediators",
     description:
-      'This endpoint provides a list required mediators for the asset. These identities must affirm any instruction involving the asset',
+      'This endpoint provides a list of required mediators for the asset. These identities must affirm any instruction involving the asset',
   })
   @ApiParam({
     name: 'ticker',

src/assets/models/required-mediators.model.ts

@@ -5,6 +5,8 @@ import { ApiProperty } from '@nestjs/swagger';
 export class RequiredMediatorsModel {
   @ApiProperty({
     description: 'Required mediators for an asset',
+    example: ['0x0600000000000000000000000000000000000000000000000000000000000000'],
+    isArray: true,
   })
   readonly mediators: string[];
 

src/settlements/models/mediator-affirmation.model.ts

@@ -13,7 +13,8 @@ export class MediatorAffirmationModel {
 
   @ApiPropertyOptional({
     description:
-      'The expiry of the affirmation. The time should be checked to ensure the affirmation is still valid',
+      'The expiry of the affirmation. If present, the time should be checked to ensure the affirmation is still valid',
+    example: new Date('05/23/2055').toISOString(),
   })
   readonly expiry?: Date;