How to use the azure-mgmt-cosmosdb.azure.mgmt.cosmosdb.models.metric_value.MetricValue function in azure-mgmt-cosmosdb

def __init__(self, **kwargs):
        super(MetricValue, self).__init__(**kwargs)
        self._count = None
        self.average = None
        self.maximum = None
        self.minimum = None
        self.timestamp = None
        self.total = None

# 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 .metric_value import MetricValue


class PercentileMetricValue(MetricValue):
    """Represents percentile metrics values.

    Variables are only populated by the server, and will be ignored when
    sending a request.

    :ivar _count: The number of values for the metric.
    :vartype _count: float
    :ivar average: The average value of the metric.
    :vartype average: float
    :ivar maximum: The max value of the metric.
    :vartype maximum: float
    :ivar minimum: The min value of the metric.
    :vartype minimum: float
    :ivar timestamp: The metric timestamp (ISO-8601 format).
    :vartype timestamp: datetime
    :ivar total: The total value of the metric.