Function a2kit::create_img_from_file

pub fn create_img_from_file(
    img_path: &str
) -> Result<Box<dyn DiskImage>, Box<dyn Error>>

Calls create_img_from_bytestream getting the bytes from a file. The pathname must already be in the right format for the file system. File extension will be used to restrict image types that are tried, unless the extension is unknown, in which case all will be tried.