message: replace resource with proxyresource
diff: "type": "object",
  "allOf": [
  {
  - "$ref": "#/definitions/Resource"
  + "$ref": "#/definitions/ProxyResource"
  }
  ],
  "properties": {
  "description": "The balance in billing currency after the event.",
  "readOnly": true,
  "$ref": "#/definitions/AmountWithExchangeRate"
  - },
  - "eTag": {
  - "readOnly": true,
  - "type": "string",
  - "description": "The eTag for the resource."
  }
  }
  },
  "type": "object",
  "allOf": [
  {
  - "$ref": "#/definitions/Resource"
  + "$ref": "#/definitions/ProxyResource"
  }
  ],
  "properties": {
  "description": "The reseller of the lot.",
  "readOnly": true,
  "$ref": "#/definitions/Reseller"
  - },
  - "eTag": {
  - "readOnly": true,
  - "type": "string",
  - "description": "The eTag for the resource."
  }
  }
  },
  "type": "object",
  "allOf": [
  {
  - "$ref": "#/definitions/Resource"
  + "$ref": "#/definitions/ProxyResource"
  }
  ],
  "properties": {
  "description": "Credit's reseller.",
  "readOnly": true,
  "$ref": "#/definitions/Reseller"
  - },
  - "eTag": {
  - "readOnly": true,
  - "type": "string",
  - "description": "The eTag for the resource."
  }
  }
  },
  