text: # coding=utf-8
  # --------------------------------------------------------------------------
  # Copyright (c) Microsoft Corporation. All rights reserved.
  # Licensed under the MIT License. See License.txt in the project root for
  # license information.
  #
  # Code generated by Microsoft (R) AutoRest Code Generator.
  # Changes may cause incorrect behavior and will be lost if the code is
  # regenerated.
  # --------------------------------------------------------------------------
  
  from .resource import Resource
  
  
  class IotHubDescription(Resource):
      """The description of the IoT hub.
  
      Variables are only populated by the server, and will be ignored when
      sending a request.
  
      All required parameters must be populated in order to send to Azure.
  
      :ivar id: The resource identifier.
      :vartype id: str
      :ivar name: The resource name.
      :vartype name: str
      :ivar type: The resource type.
      :vartype type: str
      :param location: Required. The resource location.
      :type location: str
      :param tags: The resource tags.
      :type tags: dict[str, str]
      :param etag: The Etag field is *not* required. If it is provided in the
       response body, it must also be provided as a header per the normal ETag
       convention.
      :type etag: str
      :param properties: IotHub properties
      :type properties: ~azure.mgmt.iothub.models.IotHubProperties
      :param sku: Required. IotHub SKU info
      :type sku: ~azure.mgmt.iothub.models.IotHubSkuInfo
      """
  
      _validation = {
          'id': {'readonly': True},
          'name': {'readonly': True, 'pattern': r'^(?![0-9]+$)(?!-)[a-zA-Z0-9-]{2,49}[a-zA-Z0-9]$'},
          'type': {'readonly': True},
          'location': {'required': True},
          'sku': {'required': True},
      }
  
      _attribute_map = {
          'id': {'key': 'id', 'type': 'str'},
          'name': {'key': 'name', 'type': 'str'},
          'type': {'key': 'type', 'type': 'str'},
          'location': {'key': 'location', 'type': 'str'},
          'tags': {'key': 'tags', 'type': '{str}'},
          'etag': {'key': 'etag', 'type': 'str'},
          'properties': {'key': 'properties', 'type': 'IotHubProperties'},
          'sku': {'key': 'sku', 'type': 'IotHubSkuInfo'},
      }
  
      def __init__(self, **kwargs):
          super(IotHubDescription, self).__init__(**kwargs)
          self.etag = kwargs.get('etag', None)
          self.properties = kwargs.get('properties', None)
          self.sku = kwargs.get('sku', None)
  