grafana scripted dash

sub hdt_graph {
    my $datasource = shift;
    my $filter = shift;
    my $tag = shift || '';
    my $title = shift || "HDT";
    my $span = shift || 4;

    my $g = graph_template($datasource, $filter);

    my $hdt_customer = get_hdt_customer_map();
        for my $hdt_id (get_hdt_customer()) {
            my $hdt_alias = $hdt_customer->{$hdt_id};
            my $cust_sbc_list = "sbc_id:(\"ivs-162.251.182.10\",\"ivs-162.251.182.8\",\"ivs-66.231.14.167\",\"ivs-162.251.182.7\",\"ivs-162.251.182.15\",\"ivs-66.231.14.171\",\"ivs-162.251.182.13\",\"ivs-162.251.182.9\",\"ivs-66.231.14.170\",\"ivs-162.251.182.19\",\"ivs-162.251.182.14\",\"ivs-162.251.182.16\",\"ivs-162.251.182.18\",\"ivs-66.231.14.168\",\"ivs-66.231.14.169\",\"ivs-162.251.182.17\",\"ivs-66.231.14.166\",\"ivs-162.251.182.12\",\"ivs-162.251.182.11\",\"ivs-162.251.183.24\",\"ivs-162.251.183.21\",\"ivs-162.251.183.19\",\"ivs-162.251.183.28\",\"ivs-162.251.183.20\",\"ivs-162.251.183.27\",\"ivs-162.251.183.25\",\"ivs-162.251.183.23\",\"ivs-162.251.183.26\",\"ivs-162.251.183.22\",\"ivs-162.251.180.36\",\"ivs-162.251.180.37\",\"ivs-12.7.193.138\",\"ivs-12.7.193.132\",\"ivs-12.7.193.133\",\"ivs-12.7.193.130\",\"ivs-12.7.193.137\",\"ivs-12.7.193.134\",\"ivs-12.7.193.136\",\"ivs-12.7.193.135\")";
            my $query = "fccdid_carrier_id:259 AND customer_id:$hdt_id AND $cust_sbc_list";

        $g->{title} = $title;
        $g->{span} = $span;
        $g->{targets} = [
            {
                "metrics" => [
                    {
                        "type" => "sum",
                        "field" => "talk_time",
                        "settings" => {
                            "script" => {
                                "inline" => "_value / 60",
                            },
                        },
                    }
                ],
                "bucketAggs" => [
                    {
                        "field" => "\@timestamp",
                        "id" => "2",
                        "settings" => {
                            "interval" => "10m",
                            "min_doc_count" => 0,
                            "trimEdges" => 0
                        },
                        "type" => "date_histogram"
                    }
                ],
                "timeField" => "\@timestamp",
                "refId" => "A",
                "query" => $query,
                "alias" => $hdt_alias
            },
        ];
        }
        return $g;
}