我使用swagger来记录我的RESTAPI服务。我有一个特定的输入，我提供给服务。我正在使用swagger编辑器自己创建YAML代码。我面临的问题是我无法获得输入类型XML，默认情况下需要JSON。我的yaml代码中是否有任何问题。代码如下：

swagger: "2.0"
info:
title: Order Update to Dealers
 description: API description in Markdown.
 version: 1.0.0
host: #Host name cannot be specified here
basePath: /api/OrderUpdate
schemes:
  - http
paths:
/GetFullOrderAcknowlegement:
post:
  summary: Returns a list of users.
  consumes: 
    - application/xml 
  produces:
    - text/plain

  parameters:
    - in: body
      name: DealerInput
      description: Optional extended description in Markdown.

      schema:
        properties:
          DealerID:
            type: string
          PONumber:
            type: string
  responses:
    201:
      description: Created
    200:
      schema: {}
      description: OK
    401:
      schema: {}
      description: Authorization information is missing or invalid.