human
Solve the following python programming problem given the following code:
@ classmethod 
def subcommand(cls, name, subapp = None) : 
    'Registers the given sub-application as a sub-command of this one. This method can be
        used both as a decorator and as a normal ``classmethod``::

            @MyApp.subcommand("foo")
            class FooApp(cli.Application):
                pass

        Or ::

            MyApp.subcommand("foo", FooApp)

        .. versionadded:: 1.1

        .. versionadded:: 1.3
            The subcommand can also be a string, in which case it is treated as a
            fully-qualified class name and is imported on demand. For examples,

            MyApp.subcommand("foo", "fully.qualified.package.FooApp")

        ' 
    def wrapper(subapp) : 
        attrname = ('_subcommand_%s' % ((subapp if isinstance (subapp, str) else subapp.__name__),)) 
        setattr (cls, attrname, Subcommand (name, subapp)) 
        return subapp 
return (wrapper (subapp) if name else wrapper) 

    
    

    Fix the buggy line: return (wrapper (subapp) if name else wrapper)
assistant
#Here is Python code to fix the buggy line: return (wrapper (subapp) if name else wrapper)
.

return (wrapper (subapp) if subapp else wrapper)