action ritc_list_channel_functions { label: "listChannelFunctions" description: "Retrieve Channel Functions" provider: ritc method: GET path: "/channels/{channel_id}/functions" encoding: json input: { type: "object" properties: { channel_id: { type: "string" } } required: ["channel_id"] additionalProperties: false } output: { type: "object" additionalProperties: true } }