human
keep track of how long a function has been running.
assistant
Here is a Python function to keep track of how long a has been running

import time

def time_function(function):
    """Keep track of how long a function has been running."""
    import time
    start = time.time()
    function()
    end = time.time()
    print(("Time taken by function: " + str(end - start)))

# Enter the function

def function():
    print("This is a function")

# Calling the function
print((time_function(function)))

#Example Output
# This is a function
# Time taken by function: 3.337860107421875e-06
# None

#Remember to inspect code for bugs.