Recall that Python's built-in enumerate(seq) function is a generator that returns two values on each call to next(): the offset of the value and the value. E.g.

for offset, value in enumerate("hi!"): print(offset, value)

generates the output:

0 h 1 i 2 !

Write a function, my_enumerate(seq) that provides the same functionality WITHOUT calling enumerate(). Be sure to include an automated test to validate your solution.

Hint: Your automated test may compare

list(my_enumerate(your_sequence)) 

to the expected output. Need to use an unittese to test the code.