3. Create a fourth version of this script called evens_gr.py that re-implements the original evens. py script by creating a generator function using the yield keyword. \#!/usr/bin/env python 3 import sys def evens(stream): \# TODO: Implementation that uses yield statement print(' '.join(evens(sys.stdin))) To test your scripts manually, you should be able to reproduce the following output: \[ \begin{array}{lrrr|l|l} \$ & \text { seq } & 1 & 10 & \text {./evens_fp.py } \\ 2 & 4 & 6 & 8 & 10 & \\ \$ \text { seq } & 1 & 10 & \mid \text {./evens_lc.py } \\ 2 & 4 & 6 & 8 & 10 & \\ \$ & \text { seq } & 1 & 10 & \mid \text {./evens_gr.py } \\ 2 & 4 & 6 & 8 & 10 & \end{array} \]