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				@@ -374,7 +374,13 @@ def video_homepage_recommend(mid, uid, size, app_type, algo_type, client_info, a 
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				         else: 
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				             exp_item_id_list = [item.get('expItemId') for item in ab_exp_info] 
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				             if config_.EXP_ITEM_ID['rec_size'] in exp_item_id_list: 
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				-                config_value = ab_exp_info[exp_item_id_list.index(config_.EXP_ITEM_ID['rec_size'])].get('configValue') 
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				+                config_value = ab_exp_info[exp_item_id_list.index(config_.EXP_ITEM_ID['rec_size'])].get('configValue', 
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				+                                                                                                        None) 
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				+                if config_value: 
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				+                    config_value = eval(str(config_value)) 
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				+                else: 
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				+                    config_value = {} 
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				+                log_.info(f'config_value: {config_value}, type: {type(config_value)}') 
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				                 size = int(config_value.get('size', 4)) 
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				                 top_K = int(config_value.get('K', 3)) 
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				                 flow_pool_P = float(config_value.get('P', 0.3)) 
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