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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_profile_form():
 """ Returns the profile form defined by ``settings.ACCOUNTS_PROFILE_FORM_CLASS``. """

    from yacms.conf import settings
    try:
        return import_dotted_path(settings.ACCOUNTS_PROFILE_FORM_CLASS)
    except ImportError:
        raise ImproperlyConfigured("Value for ACCOUNTS_PROFILE_FORM_CLASS "
                                   "could not be imported: %s" %
                                   settings.ACCOUNTS_PROFILE_FORM_CLASS)