is_supported( )

Allows us to determine if the file format can be loaded. The can be done via one of two subclass methods:

• "requires_all_of()" - returns an array of items that must all be present in order to work
• "requires_any_of()" - returns an array of items in which at least one must be present

You can specify a module version by passing an array reference in the return.

    sub requires_all_of { [ 'My::Module', '1.1' ], 'My::OtherModule' }

Lack of specifying these subs will assume you require no extra modules to function.