[Feature Request] add ability to have example values for parameters and responses

[NatoNathan]

It would be nice to have the ability to have example values for parameters and responses, as this could be used in the openapi specs.

Parameters could look like this

const onCallAnswerParameters = parametersBuilder()
    .addBody(
        z.object({
            to: z.string().optional(),
            from: z.string().optional(),
            uuid: z.string().uuid(),
            conversation_uuid: z.string().startsWith('CON-'),
            region_url: z.string().url().optional(),
            custom_data: customData({}).optional(),
        }),
        {
            to: '447700900000',
            from: '447700900001',
            uuid: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
            conversation_uuid: 'CON-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
            region_url: 'https://api.nexmo.com',
            custom_data: {
                my_key: 'my_value'
            }
        }
      );
// or 

const onCallAnswerParameters2 = makeParameters([
    {
        name: 'body',
        type: 'Body',
        schema: z.object({
            to: z.string().optional(),
            from: z.string().optional(),
            uuid: z.string().uuid(),
            conversation_uuid: z.string().startsWith('CON-'),
            region_url: z.string().url().optional(),
            custom_data: customData({}).optional(),
        }),
        example: {
            to: '447700900000',
            from: '447700900001',
            uuid: 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
            conversation_uuid: 'CON-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
            region_url: 'https://api.nexmo.com',
            custom_data: {
                my_key: 'my_value'
            }
        }
    }
]);

Response's could look like this

export const webhooksApi = makeApi([
    {
        description: 'On Call Answer Webhook',
        method: 'post',
        path: '/on-call-answer',
        status: 200,
        parameters: onCallAnswerParameters.build(),
        response: NCCO,
        responseExample: {
            action: 'connect',
            endpoint: [{
                type: 'app',
                user: 'alice'
            }]
        }
    }
]);

[stale]

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