I2C2 now working on pico?

Hi All!
Impressed with the pico so far, but im stuggling to get the I2C2 bit working. Testing with the following code for an OLED, but iv tried other I2C devices to no avail on the second bus.

function onInit() {
  I2C2.setup({scl:B10,sda:B3});
  var g = require("SSD1306").connect(I2C2);
  if(!g)
    console.log("error initing oled");
  else
    console.log("init SUCCESS");
}

any help appreciated