':param plugin_type: The type of plugin for which we want a description.
:return: A description of the plugin type passed as parameter'

def get_plugin_type_desc(self, plugin_type):

    try:
        __import__(('w3af.plugins.' + plugin_type))
        a_module = sys.modules[('w3af.plugins.' + plugin_type)]
    except Exception:
        msg = 'Unknown    plugin    type:    "%s".'
        raise BaseFrameworkException((msg % plugin_type))
    else:
        return a_module.get_long_description()
