action britbox_upgrade_plan {
  label: "upgradePlan"
  description: "Upgrades the plan for the current user."
  provider: britbox
  method: POST
  path: "/itv/plan/{platform}"
  encoding: json
  input: {
    type: "object"
    properties: {
      planId: {
        type: "string"
        description: "The identifier of the plan to purchase."
      }
      platform: {
        type: "string"
      }
    }
    required: ["planId", "platform"]
    additionalProperties: false
  }
  output: {
    type: "object"
    additionalProperties: true
  }
}