<｜begin▁of▁sentence｜>### Instruction:
As a Humanitarian Worker providing aid and support to individuals in need, imagine you're tasked with managing supplies in a crisis area. You have a list of items distributed among various locations. One location, in particular, contains a Multidict representing the items available, including medicines, food, and other essentials. Now, your task is to use the retrieval function akin to `get()` to fetch specific items from this location's inventory. Specifically, you're asked to retrieve items associated with 'key2', ensuring that if 'key2' does not exist, you return a designated 'default_value'. Moreover, you're also requested to attempt retrieval for an item linked to a non-existing 'key3', ensuring that if 'key3' is not found, you return the same 'default_value'. This ensures efficient management and allocation of resources during critical times.
### Response:
from multidict import MultiDict

# Create a MultiDict object
md = MultiDict([('key1', 'value1'), ('key2', 'value2'), ('key2', 'another_value2')])

# Get an arbitrary item associated to 'key2'
value = md.get('key2', 'default_value')
print(value)

# Attempt to get an item associated to 'key3', which does not exist
non_existent_value = md.get('key3', 'default_value')
print(non_existent_value)
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