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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_user_home(self, user):
 """Returns the default URL for a particular user. This method can be used to customize where a user is sent when they log in, etc. By default it returns the value of :meth:`get_absolute_url`. An alternative function can be supplied to customize this behavior by specifying a either a URL or a function which returns a URL via the ``"user_home"`` key in ``HORIZON_CONFIG``. Each of these would be valid:: {"user_home": "/home",} # A URL {"user_home": "my_module.get_user_home",} # Path to a function {"user_home": lambda user: "/" + user.name,} # A function {"user_home": None,} # Will always return the default dashboard This can be useful if the default dashboard may not be accessible to all users. When user_home is missing from HORIZON_CONFIG, it will default to the settings.LOGIN_REDIRECT_URL value. """

        user_home = self._conf['user_home']
        if user_home:
            if callable(user_home):
                return user_home(user)
            elif isinstance(user_home, six.string_types):
                # Assume we've got a URL if there's a slash in it
                if '/' in user_home:
                    return user_home
                else:
                    mod, func = user_home.rsplit(".", 1)
                    return getattr(import_module(mod), func)(user)
            # If it's not callable and not a string, it's wrong.
            raise ValueError('The user_home setting must be either a string '
                             'or a callable object (e.g. a function).')
        else:
            return self.get_absolute_url()