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  1. or download this
    my $obj = {};  # empty anonymous hash reference
bless $obj, "Some::Class";
  2. or download this
    package Some::Class;

my $obj = {};
bless $obj;    # blesses into "Some::Class"
  3. or download this
    $obj->method( 'foo' );        # @_ contains ( $obj, 'foo' )
Some::Class->method( 'foo' ); # @_ contains ( 'Some::Class', 'foo' )
  4. or download this
    package Some::Class;

...
  bless $self, $class:   # bless it into the class
  return $self;
}