human
Solve the following python programming problem given the following code:
@ define_check 
def check_copy_relations(output) : 
    from cms.plugin_pool import plugin_pool 
    from cms.extensions import extension_pool 
    from cms.extensions.models import BaseExtension 
    from cms.models.pluginmodel import CMSPlugin 
    c_to_s = (lambda klass : ('%s.%s' % (klass.__module__, klass.__name__))) 
    def get_class(method_name, model) : 
        for cls in inspect.getmro (model) : 
            if (method_name in cls.__dict__) : 
                return cls 
return None 
with output.section ('Presence of "copy_relations"') as section : 
        plugin_pool.discover_plugins () 
        for plugin in plugin_pool.plugins.values () : 
            plugin_class = plugin.model 
            if ((get_class ('copy_relations', plugin_class) is not CMSPlugin) or (plugin_class is CMSPlugin)) : 
                continue 
for rel in plugin_class._meta.many_to_many : 
                section.warn (('%s has a many-to-many relation to %s,
    but no "copy_relations" method defined.' % (c_to_s (plugin_class), c_to_s (rel.model)))) 
for rel in plugin_class._get_related_objects () : 
                if ((rel.model != CMSPlugin) and (not issubclass (rel.model, c_to_s.model)) and (rel.model != AliasPluginModel)) : 
                    section.warn (('%s has a foreign key from %s,
    but no "copy_relations" method defined.' % (c_to_s (plugin_class), c_to_s (rel.model)))) 
for extension in chain (extension_pool.page_extensions, extension_pool.title_extensions) : 
            if (get_class ('copy_relations', extension) is not BaseExtension) : 
                continue 
for rel in extension._meta.many_to_many : 
                if DJANGO_1_8 : 
                    section.warn (('%s has a many-to-many relation to %s,
    but no "copy_relations" method defined.' % (c_to_s (extension), c_to_s (rel.related.model)))) 
else : 
                    section.warn (('%s has a many-to-many relation to %s,
    but no "copy_relations" method defined.' % (c_to_s (extension), c_to_s (rel.remote_field.model)))) 
for rel in...

    
    

    Fix the buggy line: if ((rel.model != CMSPlugin) and (not issubclass (rel.model, c_to_s.model)) and (rel.model != AliasPluginModel)) :
assistant
#Here is Python program to fix the buggy line: if ((rel.

if ((rel.model != CMSPlugin) and (not issubclass (rel.model, plugin.model)) and (rel.model != AliasPluginModel)) :