t12000.nwt

# test file read with using block
import io

path := "../tests/files/abc.in"
r := using open_stream(path, binary_read_mode) as s -> error_list? {
	for value in read(s) {
		match(value)
			data {
				print(data)
			} | errors {
				return errors
			}
	}
	return nil
}