Bug: listHostsMetrics response mapping mismatch (hostmetrics --> host) causes null parsing.

The CloudStack backend response for listHostsMetrics has changed its JSON structure, but the cloudstack-go wrapper is still parsing the old field (hostmetrics).
This results in host metrics being returned as null in the Go SDK response.

Affected Component

API: listHostsMetrics (command)

Client: github.com/apache/cloudstack-go/v2

Version tested: v2.19.0 (and likely later)

Key change:
The backend now returns metrics under the field host, not hostmetrics.
Go SDK should correctly deserialize host metrics into a non-nil slice.

Actual SDK Behavior currently
{
"count": 3,
"host": null
}

Please rectify.

Comece inspecionando o wrapper cloudstack-go v2 para a API listHostsMetrics e o mapeamento da resposta. Confirme o mapeamento comparando-o com o campo do backend descrito na issue e, em seguida, verifique se o SDK retorna um slice de métricas de host não nil; o pull request vinculado #137 indica que esse trabalho já está em andamento.

Escrita pelo modelo de indexação a partir do texto da issue.