MM defined incorrect tags variable for sub resource

[neil-yechenwei]

Error:
azurerm\resource_arm_private_link_service.go:844:19: tags.Expand undefined (type map[string]interface {} has no field or method Expand)
azurerm\resource_arm_private_link_service.go:844:27: undefined: t

func expandArmPrivateLinkServicePrivateEndpoint(input []interface{}) *network.PrivateEndpoint {
    if len(input) == 0 {
        return nil
    }
    v := input[0].(map[string]interface{})
    id := v["id"].(string)
    location := azure.NormalizeLocation(v["location"].(string))
    tags := v["tags"].(map[string]interface{})
    etag := v["etag"].(string)
    result := network.PrivateEndpoint{
        Etag: utils.String(etag),
        ID: utils.String(id),
        Location: utils.String(location),
        Tags: tags.Expand(t),
    }
    return &result
}

[neil-yechenwei]

After checked, we can specify the tags for sub resource "private endpoint" while creating parent resource "private link service". Attached snapshot.