Wisdom from the fabulous perlboot:

The invocation of:

    Class->method(@args)

attempts to invoke subroutine Class::method as:

    Class::method("Class", @args);

(If the subroutine can't be found, ``inheritance'' kicks in,
but we'll get to that later.) This means that we get the
class name as the first parameter (the only parameter, if 
no arguments are given).
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