{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/CustomChannelField",
  "title": "CustomChannelField",
  "enum": [
    "utm_source",
    "utm_medium",
    "utm_campaign",
    "referring_domain",
    "url",
    "pathname",
    "hostname"
  ],
  "type": "string"
}