UpdatePolicyConfiguration.
        Update a policy configuration by its ID.
        :param :class:`<PolicyConfiguration> <azure.devops.v5_0.policy.models.PolicyConfiguration>` configuration: The policy configuration to update.
        :param str project: Project ID or project name
        :param int configuration_id: ID of the existing policy configuration to be updated.
        :rtype: :class:`<PolicyConfiguration> <azure.devops.v5_0.policy.models.PolicyConfiguration>`

def update_policy_configuration(self, configuration, project, configuration_id):
        """UpdatePolicyConfiguration.
        Update a policy configuration by its ID.
        :param :class:`<PolicyConfiguration> <azure.devops.v5_0.policy.models.PolicyConfiguration>` configuration: The policy configuration to update.
        :param str project: Project ID or project name
        :param int configuration_id: ID of the existing policy configuration to be updated.
        :rtype: :class:`<PolicyConfiguration> <azure.devops.v5_0.policy.models.PolicyConfiguration>`
        """
        route_values = {}
        if project is not None:
            route_values['project'] = self._serialize.url('project', project, 'str')
        if configuration_id is not None:
            route_values['configurationId'] = self._serialize.url('configuration_id', configuration_id, 'int')
        content = self._serialize.body(configuration, 'PolicyConfiguration')
        response = self._send(http_method='PUT',
                              location_id='dad91cbe-d183-45f8-9c6e-9c1164472121',
                              version='5.0',
                              route_values=route_values,
                              content=content)
        return self._deserialize('PolicyConfiguration', response)