Dimension or Split By option not available in azure-monitor-mgmt client "metrics.list" method

An option like Dimension or Split By should be provided which is currently not available in azure-monitor-mgmt client "metrics.list" method .
Package class: azure.mgmt.monitor._monitor_management_client.MonitorManagementClient
Operation Method: metrics.list()

A "--dimension" option which is provided in az cli command , similar parameter can be provided in its python sdk counterpart -
```bash
az monitor metrics list --resource {ResourceName} --aggregation Total --dimension "ResponseType" --metric Transactions --start-time 2022-12-08T16:00:00Z --interval PT1H
```
Az CLI Reference from: https://learn.microsoft.com/en-us/cli/azure/monitor/metrics?view=azure-cli-latest#az-monitor-metrics-list

Az monitor metrics Python SDK Reference from: https://learn.microsoft.com/en-us/python/api/azure-mgmt-monitor/azure.mgmt.monitor.v2018_01_01.operations.metricsoperations?view=azure-python#azure-mgmt-monitor-v2018-01-01-operations-metricsoperations-list

Start with the MonitorManagementClient metrics.list() operation and compare its Python SDK reference with the Azure CLI metrics list reference linked in the issue. Trace how the existing list parameters are represented in the REST API specification; done means the requested dimension or Split By option is available through the generated Python client.

Written by the indexing model from the issue text.