How to create "export default" @external?

[floral plank]

Currently external requires us to specify the name of function. How to specify function exported with default?

export default function now() {
    // ...
}

@external(javascript, "./my_package_ffi.mjs", "default") // Is this correct?
pub fn now() -> DateTime

[errant venture]

yup that's right

[floral plank]

Ah okay thanks!