Use a bare-bones client and the command you need to make an API call.

import { GroupServiceClient, LeaveGroupCommand } from "@rivet-gg/group"; // ES Modules import
// const { GroupServiceClient, LeaveGroupCommand } = require("@rivet-gg/group"); // CommonJS import
const client = new GroupServiceClient(config);
const command = new LeaveGroupCommand(input);
const response = await client.send(command);

LeaveGroupCommandInput for command's input shape.

LeaveGroupCommandOutput for command's response shape.

config for GroupServiceClient's config shape.