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 msrest.serialization import Model
  
  
  class MetricDefinition(Model):
      """A database metric definition.
  
      Variables are only populated by the server, and will be ignored when
      sending a request.
  
      :ivar name: The name information for the metric.
      :vartype name: ~azure.mgmt.sql.models.MetricName
      :ivar primary_aggregation_type: The primary aggregation type defining how
       metric values are displayed. Possible values include: 'None', 'Average',
       'Count', 'Minimum', 'Maximum', 'Total'
      :vartype primary_aggregation_type: str or
       ~azure.mgmt.sql.models.PrimaryAggregationType
      :ivar resource_uri: The resource uri of the database.
      :vartype resource_uri: str
      :ivar unit: The unit of the metric. Possible values include: 'Count',
       'Bytes', 'Seconds', 'Percent', 'CountPerSecond', 'BytesPerSecond'
      :vartype unit: str or ~azure.mgmt.sql.models.UnitDefinitionType
      :ivar metric_availabilities: The list of database metric availabities for
       the metric.
      :vartype metric_availabilities:
       list[~azure.mgmt.sql.models.MetricAvailability]
      """
  
      _validation = {
          'name': {'readonly': True},
          'primary_aggregation_type': {'readonly': True},
          'resource_uri': {'readonly': True},
          'unit': {'readonly': True},
          'metric_availabilities': {'readonly': True},
      }
  
      _attribute_map = {
          'name': {'key': 'name', 'type': 'MetricName'},
          'primary_aggregation_type': {'key': 'primaryAggregationType', 'type': 'str'},
          'resource_uri': {'key': 'resourceUri', 'type': 'str'},
          'unit': {'key': 'unit', 'type': 'str'},
          'metric_availabilities': {'key': 'metricAvailabilities', 'type': '[MetricAvailability]'},
      }
  
      def __init__(self, **kwargs):
          super(MetricDefinition, self).__init__(**kwargs)
          self.name = None
          self.primary_aggregation_type = None
          self.resource_uri = None
          self.unit = None
          self.metric_availabilities = None
  