collection = [0, '1']                 
x = collection[0]                     
collection.append(2)                  
collection.insert(0, '-1')            
y = collection[0]                     
collection.extend([2,'3'])            
collection += [2,'3']                 
collection[2:6]                       
len(collection)                       
collection = (0, 1)                   
collection[:]                         
collection[-4:-1]                     
collection[::2]                       
collection=              
x = collection[::-1]                  
collection[::2] == [::2] 
collection.__getitem__(slice(0,len(collection),2))  
collection = {0: , 1: }    
collection['zero'] = 2                
collection = set([0, '1'])