<｜begin▁of▁sentence｜>### Instruction:
As a food critic, I often need to find the best dining experiences in a given area. Now that I am exploring a new city, I need to find the restaurant with the fewest reservations, which indicates its popularity. If there are no restaurants with reservations, I'll consider the default reservation count to be 0, unless provided with another value. Just as I scrutinize a menu, I need to examine all aspects of the dining scene and get the most accurate information to share with my readers. I have heard about a network of online reservation systems for restaurants and I am wondering how to calculate the minimum number of reservations. Can you help me with this?

I also need to ensure that the minimum reservation count defaults to 0 when there are no restaurants listed or when the reservation data is not specified. This could certainly help in identifying the most obscure dining spots in town.
### Response:
import networkx as nx

# Function definition
def safemin(iterable, default=0):
    if iterable:
        return min(iterable)
    else:
        return default

# Example usage
# With non-empty iterable
values = [-5, 6, 4]
min_value = safemin(values)
print('Minimum value:', min_value)

# With empty iterable
empty_values = []
min_value_empty = safemin(empty_values)
print('Minimum value with default:', min_value_empty)

# Using safemin with a default value
no_values = ()
min_value_with_default = safemin(no_values, 2)
print('Minimum value with a provided default:', min_value_with_default)
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