<｜begin▁of▁sentence｜>### Instruction:
As a film producer, you've likely encountered the need to oversee various aspects of film production, including financing, casting, and distribution. Similarly, when working with a MultiDict object that contains potentially duplicate keys and multiple values associated with each key, you may need to iterate over the items to access each key along with its corresponding list of values. How would you approach this management task, and what techniques would you employ to efficiently handle the data within the MultiDict object?
### Response:
from multidict import MultiDict

# Create a MultiDict object with some duplicate keys
d = MultiDict([('key1', 'value1'), ('key2', 'value2'), ('key1', 'value3')])

# Iterate over the items, getting keys with their list of values
for key, values in d.iterlists():
    print(f'{key}: {values}')
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