message: Fix Billing Swagger
diff: },
  "parameters": [
  {
  - "$ref": "#/parameters/subscriptionGuidParameter"
  + "$ref": "#/parameters/subscriptionIdParameter"
  },
  {
  "$ref": "#/parameters/apiVersionParameter"
  },
  "parameters": [
  {
  - "$ref": "#/parameters/subscriptionGuidParameter"
  + "$ref": "#/parameters/subscriptionIdParameter"
  },
  {
  "$ref": "#/parameters/apiVersionParameter"
  "type": "string",
  "description": "Version of the API to be used with the client request. The current version is 2018-03-01-preview."
  },
  - "subscriptionGuidParameter": {
  + "subscriptionIdParameter": {
  "name": "subscriptionId",
  "in": "path",
  - "description": "Azure Subscription ID.",
  + "description": "The ID that uniquely identifies an Azure subscription.",
  "required": true,
  "type": "string"
  }
  