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Revision history for Sub-Alias

        - Released at 2020-04-07T00:52:00+0800
        - Use Keyword::Declare and rewrite the whole thing.
        - Fix the cases when aliases are created in wrong packages. Thanks to Douglas Hunder for contributing the bug report.

        - Use Devel::BeginLift so that compile time alias can be written as a multiple line statements.
        - Use Devel::Declare to add runtime support.
        - apparently this module really cant live with without rafl++

        - Implement alias by ref: 'alias foo => \&bar'

        - Initial release: alias foo => 'bar'