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  my $returned = some_func($sent);
  # ...
...
    # ...
    $value;
  }

  my $returned = Foo::Bar::some_func($sent);
  # in Foo::Bar:
...
    #...
    $value;
  }

  my $returned = Foo::Bar->some_func($sent);
  # in Foo::Bar (or any package that Foo::Bar derives from)
...
    # ...
    $value
  }

  my $returend = $obj->some_func($sent);
  # in the package that $obj is blessed into, or any package it is der
+ived from
...
    #...
    $value;
  }