Note that new_p is experimental

        );

    }

Non-blocking variant:

Non-blocking variant (EXPERIMENTAL):

    use Mojo::Promise;

    use Mojo::UserAgent;

=back

=item my $promise = Travel::Status::DE::IRIS->new_p(I<%opt>)

=item my $promise = Travel::Status::DE::IRIS->new_p(I<%opt>) (B<EXPERIMENTAL>)

Return a promise yielding a Travel::Status::DE::IRIS instance (C<< $status >>)

on success, or an error message (same as C<< $status->errstr >>) on failure.

This function is experimental and may be changed or remove without warning.

In addition to the arguments of B<new>, the following mandatory arguments must

be set: