message: Incorporating review comments.
  incorporating
  review comments.
diff: "properties": {
  "name": {
  "type": "string",
  - "description": "Gateway SKU name. Possible values are: 'Basic', 'HighPerformance','Standard', 'UltraPerformance', 'VpnGw1', 'VpnGw2' and 'VpnGw3'.",
  + "description": "Gateway SKU name.",
  "enum": [
  "Basic",
  "HighPerformance",
  },
  "tier": {
  "type": "string",
  - "description": "Gateway SKU tier. Possible values are: 'Basic', 'HighPerformance','Standard', 'UltraPerformance', 'VpnGw1', 'VpnGw2' and 'VpnGw3'.",
  + "description": "Gateway SKU tier.",
  "enum": [
  "Basic",
  "HighPerformance",
  