Charset change using parameterized query fails with "Uncaught TypeError: opts.emit is not a function"

(async () => {

    const { strictEqual } = require("assert");

    const Maria = require("mariadb");

    const pool = Maria.createPool({

    	user: "user",

    	password: "password",

    	host: "host"

    });

    const query = "SET NAMES 'utf8'";

    // Using string directly works as expected

    const result1 = await pool.query(query); 

    strictEqual(result1.constructor.name, "OkPacket");

    console.log("result 1 ok");

    // Using { sql: string } fails

    const result2 = await pool.query({ sql: query }); 

    strictEqual(result2.constructor.name, "OkPacket");

    console.log("result 2 ok");

})();