Render files from dir with json values

[Infusible]

Hi
I have a directory with values

cat brands/_example1.json 
{
  "x_brand": "COM-TEST3",
  "production": {
    "enabled": "false",
    "ips_list": [
      {
        "ips": [
          "1.1.1.1",
          "2.2.2.2"
        ],
        "comment": "comment1222",
        "expired_in": "tes23232t"
      },
      {
        "ips": [
          "3.3.3.3",
          "4.4.4.4/24"
        ],
        "comment": "comme23223nt2",
        "expired_in": "tes2323232341t2"
      }
    ]
  }
}

cat brands/_example2.json
{
  "x_brand": "COM-TEST2343",
  "production": {
    "enabled": "false",
    "ips_list": [
      {
        "ips": [
          "1.1.1.1",
          "2.2.2.2"
        ],
        "comment": "comment3098765",
        "expired_in": "te1232151st5"
      },
      {
        "ips": [
          "3.3.3.3",
          "4.4.4.4/24"
        ],
        "comment": "commen5435235t6",
        "expired_in": "test35234327"
      }
    ]
  }
}

Created a template

cat templates/brand.tmpl 
{{ define "T1" -}}
{{ range $key := . -}}
#{{ $key.comment }}
#{{ $key.expired_in }}
{{ join $key.ips "\n" }}

{{ end -}}
{{ end -}}
{{ $configFiles := ds "config" -}}
{{ range $filename := $configFiles -}}
{{ $config := ds "config" . -}}
{{ if has $config.production "ips_list" -}}
{{ $file := ( print "configs/test/list-test-" $config.x_brand ".inc" | strings.ToLower ) -}}
{{ template "T1" $config.production.ips_list | file.Write $file -}}
{{ end -}}
{{ end -}}

I get an error

gomplate -d config=./brands/ -f ./templates/brand.tmpl
16:02:09 ERR  error="failed to render template ./templates/brand.tmpl: template: ./templates/brand.tmpl:2:17: executing \"T1\" at <.>: range can't iterate over "

when I remove the option file.Write $file - everything works

gomplate -d config=./brands/ -f ./templates/brand.tmpl 
#comment1222
#tes23232t
1.1.1.1
2.2.2.2

#comme23223nt2
#tes2323232341t2
3.3.3.3
4.4.4.4/24

#comment3098765
#te1232151st5
1.1.1.1
2.2.2.2

#commen5435235t6
#test35234327
3.3.3.3
4.4.4.4/24

how to create separate files for each value file through templates?

[Infusible]

I think I found the answer
{{ tmpl.Exec "T1" $config.production.ips_list | file.Write $file -}}