1;
=head1 Name
SPVM::Callback - Callback interface
=head1 Usage
use Callback;
=head1 Description
The Callback interface is an L<interface|SPVM::Document::Language/"Interface"> for callbacks.
=head1 Interface Methods
=head2 Anon Method
C<required method : void ();>
A callback.
=head1 Copyright & License
Copyright (c) 2023 Yuki Kimoto
MIT License