curl --request POST \
  --url https://apigcp.trynia.ai/v2/slack/installations/{installation_id}/channels \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "mode": "all",
  "include_channels": [
    "<string>"
  ],
  "exclude_channels": [
    "<string>"
  ]
}
'

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}