By making a contribution to this project, I certify that:

(1) The contribution was created in whole by me or is based upon
    previous work that, to the best of my knowledge, is in the
    public domain and I have the right to put it in the public domain.

(2) I understand and agree that this project and the contribution are
    public and that a record of the contribution (including all
    metadata and personal information I submit with it, including my
    sign-off) is maintained indefinitely and may be redistributed.

(3) I am granting this work into the public domain.
Signed-off-by: Viktor Oreshkin <imselfish@stek29.rocks>