UpdateProcessWorkItemTypeRule.
        [Preview API] Updates a rule in the work item type of the process.
        :param :class:`<UpdateProcessRuleRequest> <azure.devops.v5_0.work_item_tracking_process.models.UpdateProcessRuleRequest>` process_rule:
        :param str process_id: The ID of the process
        :param str wit_ref_name: The reference name of the work item type
        :param str rule_id: The ID of the rule
        :rtype: :class:`<ProcessRule> <azure.devops.v5_0.work_item_tracking_process.models.ProcessRule>`

def update_process_work_item_type_rule(self, process_rule, process_id, wit_ref_name, rule_id):
        """UpdateProcessWorkItemTypeRule.
        [Preview API] Updates a rule in the work item type of the process.
        :param :class:`<UpdateProcessRuleRequest> <azure.devops.v5_0.work_item_tracking_process.models.UpdateProcessRuleRequest>` process_rule:
        :param str process_id: The ID of the process
        :param str wit_ref_name: The reference name of the work item type
        :param str rule_id: The ID of the rule
        :rtype: :class:`<ProcessRule> <azure.devops.v5_0.work_item_tracking_process.models.ProcessRule>`
        """
        route_values = {}
        if process_id is not None:
            route_values['processId'] = self._serialize.url('process_id', process_id, 'str')
        if wit_ref_name is not None:
            route_values['witRefName'] = self._serialize.url('wit_ref_name', wit_ref_name, 'str')
        if rule_id is not None:
            route_values['ruleId'] = self._serialize.url('rule_id', rule_id, 'str')
        content = self._serialize.body(process_rule, 'UpdateProcessRuleRequest')
        response = self._send(http_method='PUT',
                              location_id='76fe3432-d825-479d-a5f6-983bbb78b4f3',
                              version='5.0-preview.2',
                              route_values=route_values,
                              content=content)
        return self._deserialize('ProcessRule', response)