3. Write and test the following function: 1| def open_triangle(num_rows): Add the function to a PyDev module named functions.py. Test it from t03.py. open_triangle takes an integer parameter and prints a triangle of # characters with an empty center. Provide the function docstring (documentation) following the CP104 style. The function must use a for loop. The function does not ask for input. Sample execution: 1 | open_triangle(3) # # 1 open_triangle (8) ## # Test the function with three different sets of parameters. Partial testing: *#*## * * * * * * * #

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