message: Add descriptions for errors
diff: "schema": {
  "$ref": "#/definitions/ResourceSkusResult"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  },
  "x-ms-pageable": {
  "schema": {
  "$ref": "#/definitions/OperationEntityListResult"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  },
  "deprecated": false,
  "schema": {
  "$ref": "#/definitions/CheckSkuAvailabilityResultList"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  }
  "schema": {
  "$ref": "#/definitions/CheckDomainAvailabilityResult"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  }
  "schema": {
  "$ref": "#/definitions/PrivateEndpointConnection"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  },
  "schema": {
  "$ref": "#/definitions/PrivateEndpointConnection"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  },
  },
  "204": {
  "description": "No Content -- The private endpoint connection does not exist."
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  }
  "schema": {
  "$ref": "#/definitions/PrivateLinkResourceListResult"
  }
  + },
  + "default": {
  + "description": "Error response describing why the operation failed.",
  + "schema": {
  + "$ref": "#/definitions/Error"
  + }
  }
  }
  }
  