From https://docs.godotengine.org/en/stable/classes/class_diraccess.html

func _import(source_file, save_path, options, platform_variants, gen_files):
    var file = FileAccess.open(source_file, FileAccess.READ)
    if file == null:
        return FAILED
    var mesh = ArrayMesh.new()
    # Fill the Mesh with data read in "file", left as an exercise to the reader.

    var filename = save_path + "." + _get_save_extension()
    return ResourceSaver.save(mesh, filename)

"left as an exercise to the reader" 😆 I love it!

    trizZzle what version this example is visible on?

    i dont see it in 4.3 in the link you posted

    Not sure where and what you trying to say